A series RLC circuit has R = 100 Ω, L = 0.1 H, and C = 10 μF. If the frequency of the AC source is 50 Hz, what is the impedance?
Q1. A series RLC circuit has R = 100 Ω, L = 0.1 H, and C = 10 μF. If the frequency of the AC source is 50 Hz, what is the impedance?
Answer: 150 Ω
Explanation: First, calculate Xl and Xc. Xl = 31.4 Ω, Xc = 318 Ω. Then, Z = sqrt(R^2 + (Xl - Xc)^2) = sqrt(100^2 + (31.4 - 318)^2) = 150 Ω (approx). Option A is incorrect because it neglects reactance.