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Question

In a circular $$20\ C$$ of charge is passed through a battery in a given time. The plates of the battery are maintained at P.D. of $$20\ V$$. How much work is done by the battery?

A
$$400\ J$$
B
$$300\ J$$
C
$$200\ J$$
D
$$100\ J$$
Solution
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Correct option is A. $$400\ J$$

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