Question Detail

PHY 102 Current Electricity Objective Question

Question

The electric current is defined as the charge passing through a given cross-sectional area of a wire per unit time. Which of the following formulas represents this definition?
Options
A I = ΔQ * Δt
B I = ΔQ / Δt
Correct Answer
C I = Δt / ΔQ
D I = A / ΔQ
Correct Answer

Option B is the correct answer.

Detailed Explanation

As stated on Page 3, "The electric current is defined as the charge (ΔQ) passing through a given cross-sectional area A of a wire per unit time, that is, I = ΔQ / Δt".

Hint

Remember current is the rate of charge flow.

Question Info