A coffee maker which draws 13.5 A of current has been left on for 10 minutes. What is the net number of electrons that have passed through it?

1 Answer
Deep
Apr 19, 2017

5.0625*10^22

Explanation:

net charge passed in 10 minutes : current(A) * time(sec)
13.5 * 10 * 60 = 8100 C
an electron has 1.6*10^-19 C charge on it
number of electrons passed in 10 min : total charge / charge on electron
= 8100/(1.6*10^-19)
= 5.0625*10^22 electrons

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