Question

9 ma electric current is flowing through a conducting wire then number of electrons passing through it in 3min is ..

Answer 1

Explanation:

hope you get it with solution

Answer 2

The number of electrons passing in three minutes = 852.63 * 10^16 electrons.

Given:

Current = 9 mA.

To Find:

The number of electrons passing in three minutes.

Solution:

I = Q/t

⇒ Q = I*t

⇒ Q = 9 *10^-3 * 3*60

⇒ Q =  1620 * 10^-3

Also Q=ne

⇒ n = Q/e

⇒ n = 1620*10^-3 /(1.9 * 10^-19)

⇒ n = 852.63 * 10^16

∴ Number of electrons passing in three minute = 852.63 * 10^16 electrons

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