A 1000 Ω resistor is connected in series with a 500 mH inductor and a 10 mF capacitor. At what frequency does the circuit have a phase angle of +45°?
Q1. A 1000 Ω resistor is connected in series with a 500 mH inductor and a 10 mF capacitor. At what frequency does the circuit have a phase angle of +45°?
Answer: 30 Hz
Explanation: Using the phase angle formula, the new frequency is calculated from tan(45°) = Xc / R, giving 30 Hz