Question

What is the current in a circuit if the charge passing each point is 20 C in 40 s?

Answer 1

Here:
Charge, Q = 20 C
Time, t = 40 s
We know that, I = Q/t.
So:
I = 20/40 = 0.5 A
Therefore, the electric current flowing through the circuit is 0.5 A.