Download Electromagnetism Quiz

Electromagnetism Quiz
1. What is electromagnetism?
2. When electric current flows through a wire, it creates a(n) _____ field around the wire.
3. True or false: The field described in question 2 runs parallel to the electric wire.
4. The direction of the field described in question 2 depends on the current’s
a) voltage.
b) resistance.
c) direction.
d) none of the above
5. True or false: The strength of the field described in question 2 depends on the amount of
current flowing through the wire.
6. The _____ rule can be used to determine the direction of the magnetic field around a
wire carrying current.
7. State the rule in question 6.
8. Devices that use electromagnetism include
a) doorbells.
b) electric motors.
c) loudspeakers.
d) all of the above
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9. How is electromagnetism used in computers and medicine?
10. Explain why a magnet created by electric current may be more useful than a regular
magnet.
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