Which of the following behave as a bar magnet?

A long wire carrying the current

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A circular coil carrying the current

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none of (a) and (b)

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both (a) and (b)

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Solution

The correct option is D A circular coil carrying the current
A circular current carrying loop behaves like a bar magnet.
Both of them have similar field lines structure.

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Which of the following behave as a bar magnet?

The correct option is D A circular coil carrying the currentA circular current carrying loop behaves like a bar magnet.Both of them have similar field lines structure.

The correct option is D A circular coil carrying the current
A circular current carrying loop behaves like a bar magnet.
Both of them have similar field lines structure.