Electromagnetic Induction

Question 1

The biggest difference between a motor and a generator is that, in a motor, current passes a power source, through the brushes, then the commutator. In a generator, current passes the slip rings, through the brushes, a device where the electricity is collected.

Revolt · Accepted Answer

to

Question 2

The biggest difference between a motor and a generator is that, in a motor, current passes a power source, through the brushes, then the commutator. In a generator, current passes the slip rings, through the brushes, a device where the electricity is collected.

Revolt · Accepted Answer

from

Question 3

The biggest difference between a motor and a generator is that, in a motor, current passes a power source, through the brushes, then the commutator. In a generator, current passes the slip rings, through the brushes, a device where the electricity is collected.

Revolt · Accepted Answer

to

Question 4

The biggest difference between a motor and a generator is that, in a motor, current passes a power source, through the brushes, then the commutator. In a generator, current passes the slip rings, through the brushes, a device where the electricity is collected.

Revolt · Accepted Answer

from

Question 5

In a step-down transformer, the number of coils in the primary winding is the number of coils in the secondary winding.

Revolt · Accepted Answer

more than

Question 6

Which description correctly summarizes how an electric motor causes an axle to turn?

Revolt · Accepted Answer

The poles of the magnetic field generated around the armature are attracted to the opposite poles of the permanent magnet. As the opposite poles align, the commutator reverses the current direction so like poles are aligned and the armature continues to spin.

Question 7

V1 = V

Revolt · Accepted Answer

360

Electromagnetic Induction Answers

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