Question

A conductor carries a small current and a charge of 18 C passes through the cross-section of the conductor in 30 sec. How many electrons will flow in this time interval if the charge on one electron is 1.6 x 10 -19C? ​

Answer 1

Explanation:

The current through a conductor is 1 ampere. The no. of electrons that pass through the conductor in one second is:

MEDIUM

ANSWER

We Know that,

Charge of electron e=1.6×10

−19

Current i=1A

Now, the number of electrons that pass through the conductor in one second is

We know that,

I=ne

1A=n×1.6×10

−19

C

n=

1.6×10

−19

1

n=6.25×10

18

Hence, the number of electrons is 6.25×10

18

Answered By

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