Chapter 11 multiple choice

Lenz's law is a good example of the principle of conservation of _______.

• momentum

• energy

• electric charge

When the north pole of a magnet is moved towards the coil, the magnetic flux through it _______.

• increases

• decreases

• remains the same

The induced emf of a generator is _______ the speed of the rotating coil.

• directly proportional to

• inversely proportional to

• independent of

The induced emf of a generator is _______ the area of the coil.

• directly proportional to

• inversely proportional to

• independent of

The induced emf of a generator is _______ the number of turns in the coil.

• directly proportional to

• inversely proportional to

• independent of

The induced emf of a generator is _______ the strength of the magnetic field.

• directly proportional to

• inversely proportional to

• independent of

The frequency of AC of a generator is _______ the strength of the magnetic field.

• directly proportional to

• inversely proportional to

• independent of

The frequency of AC of a generator is _______ the number of turns in the coil.

• directly proportional to

• inversely proportional to

• independent of

The frequency of AC of a generator is _______ the area of the coil.

• directly proportional to

• inversely proportional to

• independent of

The frequency of AC of a generator is _______ the speed of the rotating coil.

• directly proportional to

• inversely proportional to

• independent of