Which of the following is true about current carrying conductors?

(A) They behave as magnets when current does not flow through them.
(B) They behave as magnets when current flows through them.
(C) They can never behave as a magnet.
(D) They are permanent magnets. [1 Mark]

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Solution

Current carrying conductors behave as magnets as long as an electric current passes through them. These magnets, which show magnetic properties only when current passes through them are called as electromagnets.

Hence option B is correct.
[1 Mark]

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