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Question

If a conductor carries a current of 3 A for 20 seconds, how much charge passes through a cross-section of the conductor?

This question was previously asked in
RRB Technician 2026 Grade 3 Question Paper (7-Oct-2026) (Shift 3)
The correct answer is

60 coulombs

Electric current is the rate of flow of charge, \(I = \frac{Q}{t}\), so \(Q = It\).

\(Q = 3 \times 20 = 60\) C.

Hence, the answer is 60 coulombs.

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