Through a wire

PHYSICS · Single correct · A Level · Physics · Electricity · Electricity

Problem

Through a wire, 4.0 C4.0\,\text{C} of charge move from point B to point A in 2.0 s2.0\,\text{s}. If current direction is taken positive from A to B, the average current is (a) +8 A+8\,\text{A} (b) +2 A+2\,\text{A} (c) −2 A-2\,\text{A} (d) −4 A-4\,\text{A}

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