The magnetic needle deflects maximum when the liquid used is

Distilled water

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Drinking water

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Sea water

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It will not show any deflection

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Solution

The correct option is C
Sea water

Sea water contains a lot of dissolved salts which enhances the magnitude of current flowing through the circuit thereby causing a greater deflection in the compass needle.

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The magnetic needle deflects maximum when the liquid used is

The correct option is C Sea water Sea water contains a lot of dissolved salts which enhances the magnitude of current flowing through the circuit thereby causing a greater deflection in the compass needle.

The correct option is C
Sea water

Sea water contains a lot of dissolved salts which enhances the magnitude of current flowing through the circuit thereby causing a greater deflection in the compass needle.