Question Detail
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?
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.