Electromagnetism questions | form four Physics

(2149) Question Category: Short answers

State the functions of the hair springs in a moving coil galvanometer.

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(2150) Question Category: Short answers

Explain why moving coil galvanometer is unsuitable for measuring alternating currents.

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(2152) Question Category: Short answers

What should be done in order to increase the speed of rotation in a d.c electric motor?

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(2153) Question Category: Short answers

An electric motor is connected by cable to a generator and produce a current of 10 A at 240 V. Calculate the resistance of the cable.

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(2154) Question Category: Short answers

Define electromagnetic field.

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