Question

In an LCR circuit, the current is calculated to be 141.4% of the initial value. What is the resonance condition for this circuit?

• A. 141.4%
• B. 50%
• C. 70.7%
• D. 22.8%

Hint:

In resonance, the impedance of an LCR circuit becomes zero, and the current reaches its maximum value. This is characterized by a \( 70.7% \) increase.

Answer 1

The Correct Option is C

Step 1: Resonance condition in an LCR circuit.
In an LCR circuit, resonance occurs when the reactance of the inductor equals the reactance of the capacitor. At resonance, the impedance of the circuit is minimized, and the current reaches its maximum.
Step 2: Conclusion.
The resonance condition in this circuit corresponds to \( 70.7% \), so the correct answer is (C).