A current of 3.6-A flows through a conductor. Calculate how much charge passed through and cross-section of the conductor in 25sec.

90 C

Explanation:

Electric current: This can be defined as the rate of flow of electric charge in a circuit. This can be expressed mathematically as,

I = dQ/dt

dQ = Idt

∫dQ = ∫Idt

Q = It ... Equation 1

Where Q = amount of charge, I = current, t = time.

Given: I = 3.6 A, t = 25 s.

Substituting into equation 1,

Q = 3.6 (25)

Q = 90 C.

Hence the amount of charge passing through the cross section of the conductor = 90 C