In an electrical circuit, a battery is connected to pass 20 C of charge through it in a certain given time. The potential difference between two plates of the battery is maintained at 15 V. The work done by the battery is ______J.
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Solution
Work done by battery $=Q(\Delta V)$
$$
\Rightarrow 20 \times 15=300 \mathrm{~J}
$$
∴ Ans. 300
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