When the current is switched on through a wire, a compass needle kept nearby gets deflected from its north-south position. Explain. [2 MARKS]

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Solution

Reason: 2 Marks

When current is passed through a wire it starts behaving as a magnet. This happens due to the magnetic effect of electric current.
Hence, when a compass needle is placed near the given current carrying wire, it gets influenced by the magnetic effect of electric current and gets deflected from its North-South position.

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When the current is switched on through a wire, a compass needle kept nearby gets deflected from its north-south position. Explain.

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