Faraday's Law and Generators Quiz

What happens when a permanent magnet is moved around a coil of copper wire?

• The coil changes color.

• The magnet loses its magnetism.

• An electric current is induced in the coil.

• The coil becomes a magnet.

According to Faraday's Law, what is the induced EMF directly proportional to?

• The length of the wire.

• The rate of change of magnetic flux linkage.

• The size of the magnet.

• The temperature of the environment.

In the formula for magnetic flux, what does 'A' represent?

• The angle of the magnet.

• The cross-sectional area of the coil.

• The altitude of the setup.

• The amplitude of the current.

What is the angle theta when the magnetic field is perpendicular to the area of the coil?

• 90 degrees

• 180 degrees

• 45 degrees

• 0 degrees

In the given problem, what is the calculated induced EMF in the coil?

• 0.6 volts

• 0.006 volts

• 0.06 volts

• 6 volts