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Electromagnetism and Electromagnet

A compass nee...

Question

A compass needle shows deflection when placed near a current carrying wire.what will happen if the direction of current is reversed?

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Solution

The compass needle will get deflected in the opposite direction. This is because the direction of the magnetic field is dependent on the direction of the current.

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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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