Q1. in electronic circuits it is not unusual to encounter currents in the microampere range. assume a 35 μa current, due to the flow of electrons. what is the average number of electrons per second that flow past a fixed reference cross section that is perpendicular to the direction of flow? (5 points)

2.9*10^14 electrons

Explanation:

An Ampere is the flow of one Coulomb per second, so 35 μA = is 35*10^-6 C per second.

An electron has a charge of 1.6*10^-19 C.

35*10^-6 / 1.6*10^-19 = 2.9*10^14 electrons

So, with a current o 35 μA you have an aevrage of 2.9*10^14 electrons flowing past a fixed reference cross section perpendicular to the direction of flow.

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answer:

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