Question

How many electrons pass through a lamp in one minute if the current be 200 ma?

Answer 1

Explanation:

The answer of question attach in figure.

Thank you.

Answer 2

Answer:

7.1*10raise to the power19 electron

I=Q/T

I=200*10raise to the power-3=0.2A

0.2=ne/60

ne=12

ne=12/1.67*10raise to the power-19

ans: ne=7.1*10raise to the power19 electron