In an RLC circuit, what happens to the impedance when the circuit is at resonanc

₹0.0

Question: In an RLC circuit, what happens to the impedance when the circuit is at resonance? (2023)

Options:

Correct Answer: Minimum

Exam Year: 2023

Solution:

At resonance, the impedance of an RLC circuit is at its minimum.

In an RLC circuit, what happens to the impedance when the circuit is at resonance? (2023)

In an RLC circuit, what happens to the impedance when the circuit is at resonance? (2023)

Step 1: Understand what an RLC circuit is. It is a circuit that contains a resistor (R), an inductor (L), and a capacitor (C).
Step 2: Learn about resonance in an RLC circuit. Resonance occurs when the frequency of the input signal matches the natural frequency of the circuit.
Step 3: Know that at resonance, the inductive reactance (XL) and capacitive reactance (XC) cancel each other out. This means XL = XC.
Step 4: Realize that when XL and XC cancel, the only impedance left is the resistance (R).
Step 5: Conclude that since the impedance is now just the resistance, it is at its minimum value at resonance.

Impedance in RLC Circuits – At resonance, the inductive and capacitive reactances cancel each other out, resulting in the minimum impedance, which is equal to the resistance.