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in Physics by (25.1k points)
Battery shown in figure has e.m.f. `E` and internal resistance `r`. Current in the circuit can be varied by sliding the contact `J`. If at any instant current flowing through the circuit is `I`, potential difference between terminals of the cells is `V`, thermal power generated in the cell is equal to `eta` fraction of total electrical power generated in it, then which of the following graphs is correct ?
image
A. image
B. image
C. image
D. Both a and b are correct

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1 Answer

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by (25.1k points)
Correct Answer - D

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