Question

_______ the resonant frequency, the current in the capacitor leads the voltage in a series RLC circuit.

• A. Above
• B. Below
• C. Equal to
• D. Depends on the circuit

Hint:

At frequencies above resonance, the capacitive reactance dominates, leading to the current in the capacitor leading the voltage.

Answer 1

The Correct Option is A

Step 1: Understand resonance in RLC circuits.
In a series RLC circuit, resonance occurs when the inductive reactance and capacitive reactance are equal in magnitude but opposite in phase, resulting in a minimum impedance.

Step 2: Behavior above resonant frequency.
Above the resonant frequency, the circuit becomes capacitive, meaning the current in the capacitor leads the voltage.