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A magnetic compass shows a deflection wh...

A magnetic compass shows a deflection when placed near a current-carrying wire. How will the deflection of the compass get affected if the current in the wire is increased? Support your answer with a reason.

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The deflection of the compass increases. This is due to the reason that magnetic field (B) due to a current-carrying straight conductor is directly proportional to the strength of the current (I) passing through it, i.e., `BpropI`.
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