Current Electricity · Class 12 · CBSE · Science Physics

A current of 2text{ A} flows through a 2 ohm resistor when connected across a potential difference. The total charge passing through any cross-sectio…

Practice question from Current Electricity (Class 12 · CBSE · Science Physics), with the correct answer and a step-by-step solution.

easy · MCQ · Q-C604B2

A current of 2 A2\text{ A} flows through a 2 ohm resistor when connected across a potential difference. The total charge passing through any cross-section of the resistor in 5 seconds5\text{ seconds} is:

  1. A.2.5 C
  2. B.10 CCorrect answer
  3. C.20 C
  4. D.0.4 C

Solution

Electric current I=QtI = \frac{Q}{t}. Therefore, charge Q=I×t=2 A×5 s=10 CQ = I \times t = 2\text{ A} \times 5\text{ s} = 10\text{ C}.

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