Generators GCSE Revision Quiz | Two Thirty Volts

GCSE Revision Quiz: Generators Age: 14-16 Year Olds

Question 1

What type of current do generators produce?

a.c. only
d.c. only
Either a.c. or d.c. depending upon the configuration.

Question 2

Generators produce electric current through....?

The principle of electromagnetic induction
The principle of Newton's 1st Law
The principle of conservation of energy.

Question 3

The current is induced in the wire coil of a generator when...?

The wire coil is heated up.
The wire coil cuts through a magnetic field.
The magnet stays in constant alignment with the coil.

Question 4

The faster the coil of a generator rotates through the magnetic field....?

The voltage stays the same.
The lower the output voltage.
The higher the output voltage.

Question 5

A commutator is a vital part of which type of generator?

a.c. only
d.c. only
Both a.c. & d.c.

Question 6

Increasing the number of turns on the generator coil....?

Increases the voltage output.
Does not alter the output voltage.
Reduces the output voltage.

Question 7

Using stronger magnets in a generator...?

Does not alter the output voltage.
Increases the voltage output.
Reduces the output voltage.

Question 8

The flow of electric current from an a.c. generator....?

Always flows in the same direction.
Alternates in direction.
Flows in random directions.

Question 9

The maximum generator output voltage occurs when...?

The coil is stationary.
The coil is cutting the magnetic field at its slowest rate.
The coil is cutting the magnetic field at right angles.

Question 10

In commercial generators the performance is improved by...?

Having a large number of coils on the rotor.
Reducing the electromagnetic field.
Having bigger slip rings.

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