Writing A Number in Engineering Notation • Shift the decimal point in “groups of three” until the number before the decimal point is between 0 and 999. • Multiply by a power of 10 that is equal to the number of places the decimal point has been moved. • The power of 10 is positive if the decimal point is moved to the left and negative if the decimal point is moved to the right. 1
W riting A N umber in E ngineering N otation. Shift the decimal point in “groups of three” until the number before the decimal point is between 0 and 999. Multiply by a power of 10 that is equal to the number of places the decimal point has been moved. - PowerPoint PPT Presentation
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Writing A Number in Engineering Notation
• Shift the decimal point in “groups of three” until the number before the decimal point is between 0 and 999.
• Multiply by a power of 10 that is equal to the number of places the decimal point has been moved.
• The power of 10 is positive if the decimal point is moved to the left and negative if the decimal point is moved to the right.
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Commonly Used SI Prefixes
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Value Prefix Symbol
1012 tera T
109 giga G
106 mega M
103 kilo k
10-3 milli m
10-6 micro
10-9 nano n
10-12 pico p
10-15 femto f
How To Read A Resistor’s Value
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Resistor Color Code
How To Read A Capacitor’s Value
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First Digit
First Figure
Second Digit
Second Figure
Third Digit
# of Zeros
Fourth Digit
Tolerance
7 2 K
4 7 00 K
4700 pF 10%
Code Tolerance
A ±0.05%
B ±0.1%
C ±0.25%
D ±0.5%
F ±1%
G ±2%
J ±5%
K ±10%
M or NONE ±20%
N ±30%
Q −10%, +30%
S −20%, +50%
T −10%, +50%
Z −20%, +80%
Disc Capacitors
Note: Units on Disc Capacitors are always in pico-farads
Common Electronic Components Displays
1) Seven Segment Display
2) Light Emitting Diodes (LED)
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1
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Common Electronic Components Integrated Circuits (IC’s) & Sockets