Question

How many electrons pass through a lamp in one minute if the current be 220mA?

Answer 1

Answer:

Current is the amount of charge passing through a conducted in a particular interval of time

Answer 2

Answer:

l=220mA=q/t

T=1min=60sec.

Hence, q=l*T=220*10^3*60=13.2C

1.6*10^-19C is the charge of 1 electron

Therefore 13.2C is the change of electron=

= 8.25*10^19 electron.

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