MHT CET 2023 Physics question
A 10 m long wire of resistance 20 is connected in series with a battery of e.m.f. 3 V. (negligible internal resistance) & a resistance of 10 . The potential gradient along the wire is
Answer: (C)
Solution
The wire, the 10 resistance and the battery are in series, so the total resistance is and the current is . The potential difference across the wire is . The potential gradient is the potential drop per
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