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The force between two magnetic poles is _____ their poles strength.

A. equal to

B. directly proportional to

C. inversely proportional to

D. directly proportional to the square root of

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  1. Electromotive force in a circuit
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  14. If a 20 V potential is applied across a relay coil with 50 turns having 1 ? of resistancea the total…
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  16. Whenever a flux inking a coil or current changesa an emf is induced in it. This is known as
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  19. The emission of electrons from hot bodies is called
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