Question

the charge on an electron is 1.6 into 10 to the power minus 19 column find the number of electrons that will flow per second to constitute a current of 2 ampere

Answer 1

So according to the definition, the formula for the current is:

I = Q/t

I = 2 A and t = 1 sec

Therefore,

Q = I*t

Q = 2*1 = 2 C

One electon consists of a charge of 1.6*10^-19 C. Then the number of electrons passing would be:

Q = n*e

n = Q/e

n = 2/(1.6*10^-19) = 1.25*10^19 electrons

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ʜᴏᴩᴇ ɪᴛ ʜᴇʟᴩꜱ

Answer 2

no. of electrons are 1.25×10^19