Question

what is the current in a circuit if the charge passing through is

a 10c in 2s
b 20c in 40s
c 240c in 2 minuites

Answer 1

$Current,\ I= \frac{Q}{t}$

a) If 10C charge passes in 2s,
$I= \frac{10}{2}\ A=\boxed{5A}$

b) If 20C charge passes in 40s,
$I= \frac{20}{40}\ A=\boxed{0.5A}$

c) If 240C charge passes in 2 minutes or 120s,
$I= \frac{240}{120}\ A=\boxed{2A}$

Answer 2

I = Q/T
i}  10C IN 2S
= 10/2
= 5A
ii}  20C IN 40S
= 20/40
= 0.5A
iii}  240C IN 2MIN
=>2MIN=120S
= 240/120
= 2A