Question Detail
Question
In an RC charging circuit, after one time constant (t = RC), the capacitor voltage reaches what percentage of its final value?
Correct Answer
Option C is the correct answer.
Detailed Explanation
V = V₀(1 - e⁻¹) = V₀(1 - 0.368) = 0.632 V₀ ≈ 63% of the final value.
Hint
1 - 1/e ≈ 0.63.