Q17 of 238 Page 103

Explain the principle of an electric generator.

when a straight conductor is moved in a magnetic field, then current is induced in the conductor is the principle on which electric generator works.


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15

Complete the following sentence :

A generator with commutator produces..........current.

 16

Two circular coils A and B are placed close to each other. If the current in coil A is changed, will some current be induced in the coil B? Give reason for your answer.

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State two ways in which the current induced in the coil of a generator could be increased.

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What is the difference between alternating current and direct current?