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Current Electricity question

2021 · 26 Feb · Shift 1 · Q68
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  5. /2021 · 26 Feb · Shift 1 · Q68

Current Electricity question

2021 · 26 Feb · Shift 1 · Q68

JEE MainPhysicsCurrent ElectricityNumerical+4 / −1
In an electrical circuit, a battery is connected to pass 20C of charge through it in a certain given time. The potential difference between two plates of the battery is maintained at 15V. The workdone by the battery is ‾\underline{\hspace{2cm}}​ J.
Numerical answer
View written solutionFree

Correct answer: 300

  1. Use the relation between work, charge, and potential difference

    The electrical work done is given by W=qVW = qVW=qV where:

    • WWW = work done
    • qqq = charge passed
    • VVV = potential difference

  2. Substitute the given values

    Given: q=20 C,V=15 Vq = 20\,\text{C}, \qquad V = 15\,\text{V}q=20C,V=15V

    So, W=20×15W = 20 \times 15W=20×15

  3. Calculate

    W=300 JW = 300\,\text{J}W=300J

  4. Final Answer

    The work done by the battery is 300 J\boxed{300\,\text{J}}300J​

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