SUBELEMENT T5 [4 Exam Questions - 4 Groups] Electrical Principles, Electronic Principles, Math for Electronics.

SUBELEMENT T5SUBELEMENT T5[4 Exam Questions - 4 Groups][4 Exam Questions - 4 Groups]

Electrical Principles, Electronic Principles, Math for Electronics

2Microhams 2010 Technician

T5 – Electrical and Electronic Principles,T5 – Electrical and Electronic Principles,Math for ElectronicsMath for Electronics

T5A – T5A – Electrical Principles, current and voltage, Electrical Principles, current and voltage, conductors and insulators, alternating and direct conductors and insulators, alternating and direct current.current.

T5B – T5B – Math for electronics, decibels, electronic unites Math for electronics, decibels, electronic unites and the metric system.and the metric system.

T5C – T5C – Electronic principles, capacitance, inductance, Electronic principles, capacitance, inductance, current flow in circuits, alternating current, definition of current flow in circuits, alternating current, definition of RF, power calculations.RF, power calculations.

T5D - T5D - Ohm’s LawOhm’s Law

T5A01 Electrical current is measured in T5A01 Electrical current is measured in which of the following units?which of the following units?

A.A. VoltsVolts

B.B. WattsWatts

C.C. OhmsOhms

D.D. AmperesAmperes

T5A01 Electrical current is measured in T5A01 Electrical current is measured in which of the following units?which of the following units?

A.A. VoltsVolts

B.B. WattsWatts

C.C. OhmsOhms

D.D. AmperesAmperes

T5A02 Electrical power is measured in T5A02 Electrical power is measured in which of the following units?which of the following units?

A.A. VoltsVolts

B.B. WattsWatts

C.C. OhmsOhms

D.D. AmperesAmperes

T5A02 Electrical power is measured in T5A02 Electrical power is measured in which of the following units?which of the following units?

A.A. VoltsVolts

B.B. WattsWattsC.C. OhmsOhms

D.D. AmperesAmperes

T5A03 What is the name for the flow of T5A03 What is the name for the flow of electrons in an electric circuit?electrons in an electric circuit?

A.A. VoltageVoltage

B.B. ResistanceResistance

C.C. CapacitanceCapacitance

D.D. CurrentCurrent

T5A03 What is the name for the flow of T5A03 What is the name for the flow of electrons in an electric circuit?electrons in an electric circuit?

A.A. VoltageVoltage

B.B. ResistanceResistance

C.C. CapacitanceCapacitance

D.D. CurrentCurrent

T5A04 What is the name for a current that T5A04 What is the name for a current that flows only in one direction?flows only in one direction?

A.A. Alternating currentAlternating current

B.B. Direct currentDirect current

C.C. Normal currentNormal current

D.D. Smooth currentSmooth current

T5A04 What is the name for a current that T5A04 What is the name for a current that flows only in one direction?flows only in one direction?

A.A. Alternating currentAlternating current

B.B. Direct currentDirect currentC.C. Normal currentNormal current

D.D. Smooth currentSmooth current

T5A05 What is the electrical term for the T5A05 What is the electrical term for the electromotive force (EMF) that causes electromotive force (EMF) that causes electron flow?electron flow?

A.A. VoltageVoltage

B.B. Ampere-hoursAmpere-hours

C.C. CapacitanceCapacitance

D.D. InductanceInductance

T5A05 What is the electrical term for the T5A05 What is the electrical term for the electromotive force (EMF) that causes electromotive force (EMF) that causes electron flow?electron flow?

A.A. VoltageVoltageB.B. Ampere-hoursAmpere-hours

C.C. CapacitanceCapacitance

D.D. InductanceInductance

T5A06 How much voltage does a mobile T5A06 How much voltage does a mobile transceiver usually require?transceiver usually require?

A.A. About 12 voltsAbout 12 volts

B.B. About 30 voltsAbout 30 volts

C.C. About 120 voltsAbout 120 volts

D.D. About 240 voltsAbout 240 volts

T5A06 How much voltage does a mobile T5A06 How much voltage does a mobile transceiver usually require?transceiver usually require?

A.A. About 12 voltsAbout 12 voltsB.B. About 30 voltsAbout 30 volts

C.C. About 120 voltsAbout 120 volts

D.D. About 240 voltsAbout 240 volts

T5A07 Which of the following is a good T5A07 Which of the following is a good electrical conductor?electrical conductor?

A.A. GlassGlass

B.B. WoodWood

C.C. CopperCopper

D.D. RubberRubber

T5A07 Which of the following is a good T5A07 Which of the following is a good electrical conductor?electrical conductor?

A.A. GlassGlass

B.B. WoodWood

C.C. CopperCopperD.D. RubberRubber

T5A08 Which of the following is a good T5A08 Which of the following is a good electrical insulator?electrical insulator?

A.A. CopperCopper

B.B. GlassGlass

C.C. AluminumAluminum

D.D. MercuryMercury

T5A08 Which of the following is a good T5A08 Which of the following is a good electrical insulator?electrical insulator?

A.A. CopperCopper

B.B. GlassGlassC.C. AluminumAluminum

D.D. MercuryMercury

T5A09 What is the name for a current that T5A09 What is the name for a current that reverses direction on a regular basis?reverses direction on a regular basis?

A.A. Alternating currentAlternating current

B.B. Direct currentDirect current

C.C. Circular currentCircular current

D.D. Vertical currentVertical current

T5A09 What is the name for a current that T5A09 What is the name for a current that reverses direction on a regular basis?reverses direction on a regular basis?

A.A. Alternating currentAlternating currentB.B. Direct currentDirect current

C.C. Circular currentCircular current

D.D. Vertical currentVertical current

T5A10 Which term describes the rate at T5A10 Which term describes the rate at which electrical energy is used?which electrical energy is used?

A.A. ResistanceResistance

B.B. CurrentCurrent

C.C. PowerPower

D.D. VoltageVoltage

T5A10 Which term describes the rate at T5A10 Which term describes the rate at which electrical energy is used?which electrical energy is used?

A.A. ResistanceResistance

B.B. CurrentCurrent

C.C. PowerPowerD.D. VoltageVoltage

T5A11 What is the basic unit of T5A11 What is the basic unit of electromotive force?electromotive force?

A.A. The voltThe volt

B.B. The wattThe watt

C.C. The ampereThe ampere

D.D. The ohmThe ohm

T5A11 What is the basic unit of T5A11 What is the basic unit of electromotive force?electromotive force?

A.A. The voltThe voltB.B. The wattThe watt

C.C. The ampereThe ampere

D.D. The ohmThe ohm

T5B01 How many milliamperes is 1.5 T5B01 How many milliamperes is 1.5 amperes?amperes?

A.A. 15 milliamperes15 milliamperes

B.B. 150 milliamperes150 milliamperes

C.C. 1,500 milliamperes1,500 milliamperes

D.D. 15,000 milliamperes15,000 milliamperes

T5B01 How many milliamperes is 1.5 T5B01 How many milliamperes is 1.5 amperes?amperes?

A.A. 15 milliamperes15 milliamperes

B.B. 150 milliamperes150 milliamperes

C.C. 1,500 milliamperes1,500 milliamperesD.D. 15,000 milliamperes15,000 milliamperes

T5B02 What is another way to specify a T5B02 What is another way to specify a radio signal frequency of 1,500,000 hertz?radio signal frequency of 1,500,000 hertz?

A.A. 1500 kHz1500 kHz

B.B. 1500 MHz1500 MHz

C.C. 15 GHz15 GHz

D.D. 150 kHz150 kHz

T5B02 What is another way to specify a T5B02 What is another way to specify a radio signal frequency of 1,500,000 hertz?radio signal frequency of 1,500,000 hertz?

A.A. 1500 kHz1500 kHzB.B. 1500 MHz1500 MHz

C.C. 15 GHz15 GHz

D.D. 150 kHz150 kHz

T5B03 How many volts are equal to one T5B03 How many volts are equal to one kilovolt?kilovolt?

A.A. One one-thousandth of a voltOne one-thousandth of a volt

B.B. One hundred voltsOne hundred volts

C.C. One thousand voltsOne thousand volts

D.D. One million voltsOne million volts

T5B03 How many volts are equal to one T5B03 How many volts are equal to one kilovolt?kilovolt?

A.A. One one-thousandth of a voltOne one-thousandth of a volt

B.B. One hundred voltsOne hundred volts

C.C. One thousand voltsOne thousand voltsD.D. One million voltsOne million volts

T5B04 How many volts are equal to one T5B04 How many volts are equal to one microvolt?microvolt?

A.A. One one-millionth of a voltOne one-millionth of a volt

B.B. One million voltsOne million volts

C.C. One thousand kilovoltsOne thousand kilovolts

D.D. One one-thousandth of a voltOne one-thousandth of a volt

T5B04 How many volts are equal to one T5B04 How many volts are equal to one microvolt?microvolt?

A.A. One one-millionth of a voltOne one-millionth of a voltB.B. One million voltsOne million volts

C.C. One thousand kilovoltsOne thousand kilovolts

D.D. One one-thousandth of a voltOne one-thousandth of a volt

T5B05 Which of the following is equivalent T5B05 Which of the following is equivalent to 500 milliwatts?to 500 milliwatts?

A.A. 0.02 watts0.02 watts

B.B. 0.5 watts0.5 watts

C.C. 5 watts5 watts

D.D. 50 watts50 watts

T5B05 Which of the following is equivalent T5B05 Which of the following is equivalent to 500 milliwatts?to 500 milliwatts?

A.A. 0.02 watts0.02 watts

B.B. 0.5 watts0.5 wattsC.C. 5 watts5 watts

D.D. 50 watts50 watts

T5B06 If an ammeter calibrated in amperes T5B06 If an ammeter calibrated in amperes is used to measure a 3000-milliampere is used to measure a 3000-milliampere current, what reading would it show?current, what reading would it show?

A.A. 0.003 amperes0.003 amperes

B.B. 0.3 amperes0.3 amperes

C.C. 3 amperes3 amperes

D.D. 3,000,000 amperes3,000,000 amperes

T5B06 If an ammeter calibrated in amperes T5B06 If an ammeter calibrated in amperes is used to measure a 3000-milliampere is used to measure a 3000-milliampere current, what reading would it show?current, what reading would it show?

A.A. 0.003 amperes0.003 amperes

B.B. 0.3 amperes0.3 amperes

C.C. 3 amperes3 amperesD.D. 3,000,000 amperes3,000,000 amperes

T5B07 If a frequency readout calibrated in T5B07 If a frequency readout calibrated in megahertz shows a reading of 3.525 MHz, megahertz shows a reading of 3.525 MHz, what would it show if it were calibrated in what would it show if it were calibrated in kilohertz?kilohertz?

A.A. 0.003525 kHz0.003525 kHz

B.B. 35.25 kHz35.25 kHz

C.C. 3525 kHz3525 kHz

D.D. 3,525,000 kHz3,525,000 kHz

T5B07 If a frequency readout calibrated in T5B07 If a frequency readout calibrated in megahertz shows a reading of 3.525 MHz, megahertz shows a reading of 3.525 MHz, what would it show if it were calibrated in what would it show if it were calibrated in kilohertz?kilohertz?

A.A. 0.003525 kHz0.003525 kHz

B.B. 35.25 kHz35.25 kHz

C.C. 3525 kHz3525 kHzD.D. 3,525,000 kHz3,525,000 kHz

T5B08 How many microfarads are T5B08 How many microfarads are 1,000,000 picofarads?1,000,000 picofarads?

A.A. 0.001 microfarads0.001 microfarads

B.B. 1 microfarad1 microfarad

C.C. 1000 microfarads1000 microfarads

D.D. 1,000,000,000 microfarads1,000,000,000 microfarads

T5B08 How many microfarads are T5B08 How many microfarads are 1,000,000 picofarads?1,000,000 picofarads?

A.A. 0.001 microfarads0.001 microfarads

B.B. 1 microfarad1 microfaradC.C. 1000 microfarads1000 microfarads

D.D. 1,000,000,000 microfarads1,000,000,000 microfarads

T5B09 What is the approximate amount of T5B09 What is the approximate amount of change, measured in decibels (dB), of a change, measured in decibels (dB), of a power increase from 5 watts to 10 watts?power increase from 5 watts to 10 watts?

A.A. 2 dB2 dB

B.B. 3 dB3 dB

C.C. 5 dB5 dB

D.D. 10 dB10 dB

T5B09 What is the approximate amount of T5B09 What is the approximate amount of change, measured in decibels (dB), of a change, measured in decibels (dB), of a power increase from 5 watts to 10 watts?power increase from 5 watts to 10 watts?

A.A. 2 dB2 dB

B.B. 3 dB3 dBC.C. 5 dB5 dB

D.D. 10 dB10 dB

T5B10 What is the approximate amount of T5B10 What is the approximate amount of change, measured in decibels (dB), of a change, measured in decibels (dB), of a power decrease from 12 watts to 3 watts?power decrease from 12 watts to 3 watts?

A.A. 1 dB1 dB

B.B. 3 dB3 dB

C.C. 6 dB6 dB

D.D. 9 dB9 dB

T5B10 What is the approximate amount of T5B10 What is the approximate amount of change, measured in decibels (dB), of a change, measured in decibels (dB), of a power decrease from 12 watts to 3 watts?power decrease from 12 watts to 3 watts?

A.A. 1 dB1 dB

B.B. 3 dB3 dB

C.C. 6 dB6 dBD.D. 9 dB9 dB

T5B11 What is the approximate amount of T5B11 What is the approximate amount of change, measured in decibels (dB), of a change, measured in decibels (dB), of a power increase from 20 watts to 200 power increase from 20 watts to 200 watts?watts?

A.A. 10 dB10 dB

B.B. 12 dB12 dB

C.C. 18 dB18 dB

D.D. 28 dB28 dB

T5B11 What is the approximate amount of T5B11 What is the approximate amount of change, measured in decibels (dB), of a change, measured in decibels (dB), of a power increase from 20 watts to 200 power increase from 20 watts to 200 watts?watts?

A.A. 10 dB10 dBB.B. 12 dB12 dB

C.C. 18 dB18 dB

D.D. 28 dB28 dB

T5C01 What is the ability to store energy in T5C01 What is the ability to store energy in an electric field called?an electric field called?

A.A. InductanceInductance

B.B. ResistanceResistance

C.C. ToleranceTolerance

D.D. CapacitanceCapacitance

T5C01 What is the ability to store energy in T5C01 What is the ability to store energy in an electric field called?an electric field called?

A.A. InductanceInductance

B.B. ResistanceResistance

C.C. ToleranceTolerance

D.D. CapacitanceCapacitance

T5C02 What is the basic unit of T5C02 What is the basic unit of capacitance?capacitance?

A.A. The faradThe farad

B.B. The ohmThe ohm

C.C. The voltThe volt

D.D. The henryThe henry

T5C02 What is the basic unit of T5C02 What is the basic unit of capacitance?capacitance?

A.A. The faradThe faradB.B. The ohmThe ohm

C.C. The voltThe volt

D.D. The henryThe henry

T5C03 What is the ability to store energy in T5C03 What is the ability to store energy in a magnetic field called?a magnetic field called?

A.A. AdmittanceAdmittance

B.B. CapacitanceCapacitance

C.C. ResistanceResistance

D.D. InductanceInductance

T5C03 What is the ability to store energy in T5C03 What is the ability to store energy in a magnetic field called?a magnetic field called?

A.A. AdmittanceAdmittance

B.B. CapacitanceCapacitance

C.C. ResistanceResistance

D.D. InductanceInductance

T5C04 What is the basic unit of T5C04 What is the basic unit of inductance?inductance?

A.A. The coulombThe coulomb

B.B. The faradThe farad

C.C. The henryThe henry

D.D. The ohmThe ohm

T5C04 What is the basic unit of T5C04 What is the basic unit of inductance?inductance?

A.A. The coulombThe coulomb

B.B. The faradThe farad

C.C. The henryThe henryD.D. The ohmThe ohm

T5C05 What is the unit of frequency?T5C05 What is the unit of frequency?

A.A. HertzHertz

B.B. HenryHenry

C.C. FaradFarad

D.D. TeslaTesla

T5C05 What is the unit of frequency?T5C05 What is the unit of frequency?

A.A. HertzHertzB.B. HenryHenry

C.C. FaradFarad

D.D. TeslaTesla

T5C06 What is the abbreviation that refers T5C06 What is the abbreviation that refers to radio frequency signals of all types?to radio frequency signals of all types?

A.A. AFAF

B.B. HFHF

C.C. RFRF

D.D. VHFVHF

T5C06 What is the abbreviation that refers T5C06 What is the abbreviation that refers to radio frequency signals of all types?to radio frequency signals of all types?

A.A. AFAF

B.B. HFHF

C.C. RFRFD.D. VHFVHF

T5C07 What is a usual name for T5C07 What is a usual name for electromagnetic waves that travel through electromagnetic waves that travel through space?space?

A.A. Gravity wavesGravity waves

B.B. Sound wavesSound waves

C.C. Radio wavesRadio waves

D.D. Pressure wavesPressure waves

T5C07 What is a usual name for T5C07 What is a usual name for electromagnetic waves that travel through electromagnetic waves that travel through space?space?

A.A. Gravity wavesGravity waves

B.B. Sound wavesSound waves

C.C. Radio wavesRadio wavesD.D. Pressure wavesPressure waves

T5C08 What is the formula used to T5C08 What is the formula used to calculate electrical power in a DC circuit?calculate electrical power in a DC circuit?

A.A. Power (P) equals voltage (E) multiplied by current (I)Power (P) equals voltage (E) multiplied by current (I)

B.B. Power (P) equals voltage (E) divided by current (I)Power (P) equals voltage (E) divided by current (I)

C.C. Power (P) equals voltage (E) minus current (I)Power (P) equals voltage (E) minus current (I)

D.D. Power (P) equals voltage (E) plus current (I)Power (P) equals voltage (E) plus current (I)

T5C08 What is the formula used to T5C08 What is the formula used to calculate electrical power in a DC circuit?calculate electrical power in a DC circuit?

A.A. Power (P) equals voltage (E) multiplied by Power (P) equals voltage (E) multiplied by current (I)current (I)B.B. Power (P) equals voltage (E) divided by current (I)Power (P) equals voltage (E) divided by current (I)

C.C. Power (P) equals voltage (E) minus current (I)Power (P) equals voltage (E) minus current (I)

D.D. Power (P) equals voltage (E) plus current (I)Power (P) equals voltage (E) plus current (I)

T5C09 How much power is being used in a T5C09 How much power is being used in a circuit when the applied voltage is 13.8 circuit when the applied voltage is 13.8 volts DC and the current is 10 amperes?volts DC and the current is 10 amperes?

A.A. 138 watts138 watts

B.B. 0.7 watts0.7 watts

C.C. 23.8 watts23.8 watts

D.D. 3.8 watts3.8 watts

T5C09 How much power is being used in a T5C09 How much power is being used in a circuit when the applied voltage is 13.8 circuit when the applied voltage is 13.8 volts DC and the current is 10 amperes?volts DC and the current is 10 amperes?

A.A. 138 watts138 wattsB.B. 0.7 watts0.7 watts

C.C. 23.8 watts23.8 watts

D.D. 3.8 watts3.8 watts

T5C10 How much power is being used in a T5C10 How much power is being used in a circuit when the applied voltage is 12 volts circuit when the applied voltage is 12 volts DC and the current is 2.5 amperes?DC and the current is 2.5 amperes?

A.A. 4.8 watts4.8 watts

B.B. 30 watts30 watts

C.C. 14.5 watts14.5 watts

D.D. 0.208 watts0.208 watts

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T5C10 How much power is being used in a T5C10 How much power is being used in a circuit when the applied voltage is 12 volts DC circuit when the applied voltage is 12 volts DC and the current is 2.5 amperes?and the current is 2.5 amperes?

P

I E

P = I * E

P = 2.5 A x 12 V = 30 W

T5C10 How much power is being used in a T5C10 How much power is being used in a circuit when the applied voltage is 12 volts circuit when the applied voltage is 12 volts DC and the current is 2.5 amperes?DC and the current is 2.5 amperes?

A.A. 4.8 watts4.8 watts

B.B. 30 watts30 wattsC.C. 14.5 watts14.5 watts

D.D. 0.208 watts0.208 watts

T5C11 How many amperes are flowing in a T5C11 How many amperes are flowing in a circuit when the applied voltage is 12 volts circuit when the applied voltage is 12 volts DC and the load is 120 watts?DC and the load is 120 watts?

A.A. 0.1 amperes0.1 amperes

B.B. 10 amperes10 amperes

C.C. 12 amperes12 amperes

D.D. 132 amperes132 amperes

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T5C11 How many amperes are flowing in a T5C11 How many amperes are flowing in a circuit when the applied voltage is 12 volts circuit when the applied voltage is 12 volts DC and the load is 120 watts?DC and the load is 120 watts?

P

I E

I = P / E

I = 120 W 12 VDC = 10A

T5C11 How many amperes are flowing in a T5C11 How many amperes are flowing in a circuit when the applied voltage is 12 volts circuit when the applied voltage is 12 volts DC and the load is 120 watts?DC and the load is 120 watts?

A.A. 0.1 amperes0.1 amperes

B.B. 10 amperes10 amperesC.C. 12 amperes12 amperes

D.D. 132 amperes132 amperes

T5D01 What formula is used to calculate T5D01 What formula is used to calculate current in a circuit?current in a circuit?

A.A. Current (I) equals voltage (E) multiplied by resistance Current (I) equals voltage (E) multiplied by resistance (R)(R)

B.B. Current (I) equals voltage (E) divided by resistance (R)Current (I) equals voltage (E) divided by resistance (R)

C.C. Current (I) equals voltage (E) added to resistance (R)Current (I) equals voltage (E) added to resistance (R)

D.D. Current (I) equals voltage (E) minus resistance (R)Current (I) equals voltage (E) minus resistance (R)

T5D01 What formula is used to calculate T5D01 What formula is used to calculate current in a circuit?current in a circuit?

A.A. Current (I) equals voltage (E) multiplied by resistance Current (I) equals voltage (E) multiplied by resistance (R)(R)

B.B. Current (I) equals voltage (E) divided by Current (I) equals voltage (E) divided by resistance (R)resistance (R)C.C. Current (I) equals voltage (E) added to resistance (R)Current (I) equals voltage (E) added to resistance (R)

D.D. Current (I) equals voltage (E) minus resistance (R)Current (I) equals voltage (E) minus resistance (R)

T5D02 What formula is used to calculate T5D02 What formula is used to calculate voltage in a circuit?voltage in a circuit?

A.A. Voltage (E) equals current (I) multiplied by resistance Voltage (E) equals current (I) multiplied by resistance (R)(R)

B.B. Voltage (E) equals current (I) divided by resistance (R)Voltage (E) equals current (I) divided by resistance (R)

C.C. Voltage (E) equals current (I) added to resistance (R)Voltage (E) equals current (I) added to resistance (R)

D.D. Voltage (E) equals current (I) minus resistance (R)Voltage (E) equals current (I) minus resistance (R)

T5D02 What formula is used to calculate T5D02 What formula is used to calculate voltage in a circuit?voltage in a circuit?

A.A. Voltage (E) equals current (I) multiplied Voltage (E) equals current (I) multiplied by resistance (R)by resistance (R)B.B. Voltage (E) equals current (I) divided by resistance (R)Voltage (E) equals current (I) divided by resistance (R)

C.C. Voltage (E) equals current (I) added to resistance (R)Voltage (E) equals current (I) added to resistance (R)

D.D. Voltage (E) equals current (I) minus resistance (R)Voltage (E) equals current (I) minus resistance (R)

T5D03 What formula is used to calculate T5D03 What formula is used to calculate resistance in a circuit?resistance in a circuit?

A.A. Resistance (R) equals voltage (E) multiplied by current Resistance (R) equals voltage (E) multiplied by current (I)(I)

B.B. Resistance (R) equals voltage (E) divided by current (I)Resistance (R) equals voltage (E) divided by current (I)

C.C. Resistance (R) equals voltage (E) added to current (I)Resistance (R) equals voltage (E) added to current (I)

D.D. Resistance (R) equals voltage (E) minus current (I)Resistance (R) equals voltage (E) minus current (I)

T5D03 What formula is used to calculate T5D03 What formula is used to calculate resistance in a circuit?resistance in a circuit?

A.A. Resistance (R) equals voltage (E) multiplied by current Resistance (R) equals voltage (E) multiplied by current (I)(I)

B.B. Resistance (R) equals voltage (E) divided Resistance (R) equals voltage (E) divided by current (I)by current (I)C.C. Resistance (R) equals voltage (E) added to current (I)Resistance (R) equals voltage (E) added to current (I)

D.D. Resistance (R) equals voltage (E) minus current (I)Resistance (R) equals voltage (E) minus current (I)

T5D04 What is the resistance of a circuit in T5D04 What is the resistance of a circuit in which a current of 3 amperes flows which a current of 3 amperes flows through a resistor connected to 90 volts?through a resistor connected to 90 volts?

A.A. 3 ohms3 ohms

B.B. 30 ohms30 ohms

C.C. 93 ohms93 ohms

D.D. 270 ohms270 ohms

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T5D04 What is the resistance of a circuit in which T5D04 What is the resistance of a circuit in which a current of 3 amperes flows through a resistor a current of 3 amperes flows through a resistor connected to 90 volts?connected to 90 volts?

E

I R

R = E / I

R = 90 V 3 A = 30Ω

T5D04 What is the resistance of a circuit in T5D04 What is the resistance of a circuit in which a current of 3 amperes flows which a current of 3 amperes flows through a resistor connected to 90 volts?through a resistor connected to 90 volts?

A.A. 3 ohms3 ohms

B.B. 30 ohms30 ohmsC.C. 93 ohms93 ohms

D.D. 270 ohms270 ohms

T5D05 What is the resistance in a circuit T5D05 What is the resistance in a circuit for which the applied voltage is 12 volts for which the applied voltage is 12 volts and the current flow is 1.5 amperes?and the current flow is 1.5 amperes?

A.A. 18 ohms18 ohms

B.B. 0.125 ohms0.125 ohms

C.C. 8 ohms8 ohms

D.D. 13.5 ohms13.5 ohms

Radio and Electronic Fundamentals81

T5D05 What is the resistance in a circuit for T5D05 What is the resistance in a circuit for which the applied voltage is 12 volts and the which the applied voltage is 12 volts and the current flow is 1.5 amperes?current flow is 1.5 amperes?

E

I R

R = E / I

R = 12 V 1.5 A = 8 Ω

T5D05 What is the resistance in a circuit T5D05 What is the resistance in a circuit for which the applied voltage is 12 volts for which the applied voltage is 12 volts and the current flow is 1.5 amperes?and the current flow is 1.5 amperes?

A.A. 18 ohms18 ohms

B.B. 0.125 ohms0.125 ohms

C.C. 8 ohms8 ohmsD.D. 13.5 ohms13.5 ohms

T5D06 What is the resistance of a circuit T5D06 What is the resistance of a circuit that draws 4 amperes from a 12-volt that draws 4 amperes from a 12-volt source?source?

A.A. 3 ohms3 ohms

B.B. 16 ohms16 ohms

C.C. 48 ohms48 ohms

D.D. 8 Ohms8 Ohms

Radio and Electronic Fundamentals84

T5D06 What is the resistance of a circuit that T5D06 What is the resistance of a circuit that draws 4 amperes from a 12-volt source?draws 4 amperes from a 12-volt source?

E

I R

R = E / I

R = 12 V 4 A = 3 Ω

T5D06 What is the resistance of a circuit T5D06 What is the resistance of a circuit that draws 4 amperes from a 12-volt that draws 4 amperes from a 12-volt source?source?

A.A. 3 ohms3 ohmsB.B. 16 ohms16 ohms

C.C. 48 ohms48 ohms

D.D. 8 Ohms8 Ohms

T5D07 What is the current flow in a circuit T5D07 What is the current flow in a circuit with an applied voltage of 120 volts and a with an applied voltage of 120 volts and a resistance of 80 ohms?resistance of 80 ohms?

A.A. 9600 amperes9600 amperes

B.B. 200 amperes200 amperes

C.C. 0.667 amperes0.667 amperes

D.D. 1.5 amperes1.5 amperes

Radio and Electronic Fundamentals87

T5D07 What is the current flow in a circuit T5D07 What is the current flow in a circuit with an applied voltage of 120 volts and a with an applied voltage of 120 volts and a resistance of 80 ohms?resistance of 80 ohms?

E

I R

I = E / R

I = 120V 80Ω = 1.5A

T5D07 What is the current flow in a circuit T5D07 What is the current flow in a circuit with an applied voltage of 120 volts and a with an applied voltage of 120 volts and a resistance of 80 ohms?resistance of 80 ohms?

A.A. 9600 amperes9600 amperes

B.B. 200 amperes200 amperes

C.C. 0.667 amperes0.667 amperes

D.D. 1.5 amperes1.5 amperes

T5D08 What is the current flowing through T5D08 What is the current flowing through a 100-ohm resistor connected across 200 a 100-ohm resistor connected across 200 volts?volts?

A.A. 20,000 amperes20,000 amperes

B.B. 0.5 amperes0.5 amperes

C.C. 2 amperes2 amperes

D.D. 100 amperes100 amperes

Radio and Electronic Fundamentals90

T5D08 What is the current flowing through T5D08 What is the current flowing through a 100-ohm resistor connected across 200 a 100-ohm resistor connected across 200 volts?volts?

E

I R

I = E / R

I = 200V 100Ω = 2 A

T5D08 What is the current flowing through T5D08 What is the current flowing through a 100-ohm resistor connected across 200 a 100-ohm resistor connected across 200 volts?volts?

A.A. 20,000 amperes20,000 amperes

B.B. 0.5 amperes0.5 amperes

C.C. 2 amperes2 amperesD.D. 100 amperes100 amperes

T5D09 What is the current flowing through T5D09 What is the current flowing through a 24-ohm resistor connected across 240 a 24-ohm resistor connected across 240 volts?volts?

A.A. 24,000 amperes24,000 amperes

B.B. 0.1 amperes0.1 amperes

C.C. 10 amperes10 amperes

D.D. 216 amperes216 amperes

Radio and Electronic Fundamentals93

T5D09 What is the current flowing through T5D09 What is the current flowing through a 24-ohm resistor connected across 240 a 24-ohm resistor connected across 240 volts?volts?

E

I R

I = E / R

I = 240V 24Ω = 10 A

T5D09 What is the current flowing through T5D09 What is the current flowing through a 24-ohm resistor connected across 240 a 24-ohm resistor connected across 240 volts?volts?

A.A. 24,000 amperes24,000 amperes

B.B. 0.1 amperes0.1 amperes

C.C. 10 amperes10 amperesD.D. 216 amperes216 amperes

T5D10 What is the voltage across a 2-ohm T5D10 What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows resistor if a current of 0.5 amperes flows through it?through it?

A.A. 1 volt1 volt

B.B. 0.25 volts0.25 volts

C.C. 2.5 volts2.5 volts

D.D. 1.5 volts1.5 volts

Radio and Electronic Fundamentals96

T5D10 What is the voltage across a 2-ohm T5D10 What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through resistor if a current of 0.5 amperes flows through it?it?

E

I R

E = I * R

E = 0.5A x 2Ω = 1V

T5D10 What is the voltage across a 2-ohm T5D10 What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows resistor if a current of 0.5 amperes flows through it?through it?

A.A. 1 volt1 voltB.B. 0.25 volts0.25 volts

C.C. 2.5 volts2.5 volts

D.D. 1.5 volts1.5 volts

T5D11 What is the voltage across a 10-T5D11 What is the voltage across a 10-ohm resistor if a current of 1 ampere flows ohm resistor if a current of 1 ampere flows through it?through it?

A.A. 1 volt1 volt

B.B. 10 volts10 volts

C.C. 11 volts11 volts

D.D. 9 volts9 volts

Radio and Electronic Fundamentals99

T5D11 What is the voltage across a 10-ohm T5D11 What is the voltage across a 10-ohm resistor if a current of 1 amperes flows through resistor if a current of 1 amperes flows through it?it?

E

I R

E = I * R

E = 1 A x 10Ω = 10V

T5D11 What is the voltage across a 10-T5D11 What is the voltage across a 10-ohm resistor if a current of 1 ampere flows ohm resistor if a current of 1 ampere flows through it?through it?

A.A. 1 volt1 volt

B.B. 10 volts10 voltsC.C. 11 volts11 volts

D.D. 9 volts9 volts

T5D12 What is the voltage across a 10-T5D12 What is the voltage across a 10-ohm resistor if a current of 2 amperes ohm resistor if a current of 2 amperes flows through it?flows through it?

A.A. 8 volts8 volts

B.B. 0.2 volts0.2 volts

C.C. 12 volts12 volts

D.D. 20 volts20 volts

Radio and Electronic Fundamentals102

T5D12 What is the voltage across a 10-ohm T5D12 What is the voltage across a 10-ohm resistor if a current of 2 amperes flows through resistor if a current of 2 amperes flows through it?it?

E

I R

E = I * R

E = 2 A x 10Ω = 20V

T5D12 What is the voltage across a 10-T5D12 What is the voltage across a 10-ohm resistor if a current of 2 amperes ohm resistor if a current of 2 amperes flows through it?flows through it?

A.A. 8 volts8 volts

B.B. 0.2 volts0.2 volts

C.C. 12 volts12 volts

D.D. 20 volts20 volts