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1. |
The internal resistance of a primary cell is 4 ohm. It generates a current of 0.2 ampere in an external resistance of 2 ohm. The rate at which chemical energy is consumed in providing the current is |
A. | \[0.42\,J\text{/}s\] |
B. | \[0.24\,J\text{/}s\] |
C. | speed of the wire |
D. | \[1\,J\text{/}s\] |
Answer» C. speed of the wire | |