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Question
Label the four parts of an electric motor

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Solution

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Split ring
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An electric motor converts mechanical energy into electrical energy.
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Fill in the following blank with suitable words:
Fleming's Rule for the motor effect uses the .......... hand.
State what would happen to the direction of rotation of a motor if:
the current were reversed
State what would happen to the direction of rotation of a motor if:
both current and magnetic field were reversed simultaneously.
State what would happen to the direction of rotation of a motor if:
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two rotations
one rotation
half rotation
one-four rotation
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mechanical energy to electrical
heat energy to electrical energy
electrical energy to heat energy only
electrical energy to mechanical energy
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Loud speaker, Microphone, Electric motor, Magnet.
Which device is used to produce electricity? Describe with a neat diagram.
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What is an electric motor?
An electric motor converts ______.
State whether true or false. If false, correct the statement.
The speed of rotation of an electric motor can be increased by decreasing the area of the coil.
An electric motor is a device which transforms ____________.
In an electric motor, to make the coil rotating continuously in the same direction, the current is reversed in the coil after every half rotation by a device called ____________.
Commercial electric motors do not use ____________.
Draw an appropriate schematic diagram showing common domestic circuits and discuss the importance of fuse. Why is it that a burnt out fuse should be replaced by another fuse of identical rating?
The most suitable material for making permanent magnets is ______.
The moving part of an electric motor is called ______.
Observe the following diagram and answer the questions.

- Construction of which equipment does the above diagram show?
- On which principle does this equipment work?
- According to which law the coil ABCD rotates?
- Write the law in your own words.
- Where is this equipment used?
