A total of 2.0 × 10¹³ electrons pass a given point in a wire in 15 s.What is the current through the wire? (e = 1.60 × 10^-19C) A)1.3 mA B)1.3 A C)0.21 μA D)3.2 μA

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Quizplus · Accepted Answer

First, we need to find the total charge that passed through the wire using Q = ne, where n is the total number of electrons and e is the charge of an electron. 
Q = (2.0 × 10^19)(1.60 × 10^-19 C) = 3.2 × 10^-6 C 
Next, we can use the definition of current, I = Q/t, where t is the time period. 
I = (3.2 × 10^-6 C)/(15 s) = 0.21 μA 
Therefore, the current through the wire is 0.21 μA, which is option C.

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