Saturday, 30 August 2014

ELECTROMAGNETIC INDUCTION TERMINOLOGY


ELECTROMAGNECTICINDUCTION
Select the correct term to complete the sentences.

electric generator
electric motor
armature
brushes
electromagnetic induction
transformer
Faraday’s law of induction
rotor
solenoid
commutator
coil




1. A wire looped into a circular _____ can be used to create a magnetic
field that is stronger than that of a single wire.
2. A coil with many turns called a _____ is a device commonly used in
speakers, motors, and many other devices.
3. A(n) _____ is used to convert electrical energy into mechanical
energy.
4. A _____ is used in a motor to switch the direction of the magnetic
field created by the current.
5. The rotating part of a motor that holds the electromagnets is called the
_____.
6. Electric current passes through the _____ and into the electromagnets
in an electric motor.
7. A(n) _____ is used to convert mechanical energy into electrical
energy.
8. Using a magnet to create electric current in a wire is called _____.
9. _____ explains the relationship between the current created in a coil
and the rate of change of the magnetic field through the coil.
10. A _____ uses two coils to change the voltage of the electricity
coming into your home.