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  • 14-03-2024
  • Physics
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The internal resistance of a primary cell is 4Ω. It generates a current of 0.2A in an external resistance of 21Ω. The rate of chemical energy consumed in providing the current is
A.1J/s
B. 5J/s
C. 0.42J/s
D. 0.8J/s

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