Question

A current 0.2 A flows in a wire of resistance 15Ω. Find the potential difference across the ends of the wire.

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Answer

I = 0.2 A

R = 15 Ω

Potential difference = ?

From Ohm’s Law,

V = IR

Substituting the values in the formula, we get,

V = 0.2 × 15 = 3 V

Hence, the potential difference across the ends of the wire = 3 V

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