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A conducting wire of length l, area of cross-section A and electrical resistivity ρ is connected between the terminals of a battery. A potential difference V is developed between its ends, causing an electric current. If the length of the wire is doubled and the area of cross-section is halved, the resultant current would be: |
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Answer» A conducting wire of length l, area of cross-section A and electrical resistivity ρ is connected between the terminals of a battery. A potential difference V is developed between its ends, causing an electric current. If the length of the wire is doubled and the area of cross-section is halved, the resultant current would be: |
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