Question

Calculate the charge passing through an electric bulb in 20 minutes the value of the current is 20ma

Answer 1

Let the charge be Q
time =20min = 20×60sec=1200sec
Current = 20mA=20×10^-3
$i = \frac{Q}{t} \\ Q = I \times t \\ 20 \times {10}^{ - 3} \times 1200 \\ = 2 \times 12 \\ = 24C$

Answer 2

Answer:

time=20 mijn =1200 sec              q=?=electric current

current=20ma=20/1000=0.02

i=q/t

q=i*t

=0.02*1200

q=24c

then, charge of electric current is 24c

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