Electricity & Magnetismat Work
Electricity, Magnetism, & Motion
Chapter 3
Section 1
Energy
• The ability to move an object some distance
Electrical Energy
• Energy associated with electric currents
Mechanical Energy
• The energy an object has do to its movement or position
Converting Electrical Mechanical
• When a current-carrying wire is placed in a magnetic field, electrical energy is turned into mechanical energy
Electric Motors
• Uses electric current to turn an axle– Electrical Mechanical
• Fans• Blenders
Parts of a Motor
• Commutator • Reverses the flow of current through an electric motor
Parts of a Motor
• Brushes • Creates the two contact points with the commutator
Parts of a Motor
• Armature • Dozens or hundreds of loops of wire wrapped around an iron core
