CUET · PHYSICS · PYQ PAPER 2025

In a series RLC circuit at resonance
(A) Impedance is maximum
(B) \( X_c = X_L \)
(C) Z = R
(D) \( \omega = \frac{1}{\sqrt{LC}} \)
Choose the correct answer from the options given below:

A (A), (B) and (D) only
B (A), (B) and (C) only
C (A), (B), (C) and (D)
D (B), (C) and (D) only

Verified Solution

Answer & Solution

Correct Answer

(D) (B), (C) and (D) only

Step-by-step Solution

Detailed explanation

At resonance in a series RLC circuit, the inductive reactance equals the capacitive reactance ( \(X_L= X_C\) ), causing them to cancel each other out. This results in the impedance reaching its minimum value \((Z=R)\) and the resonant angular frequency being defined as…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

Explore more questions on app

From CUET

Explore more questions on app

Year		Commodities
	A	B	C
2011	32	80	100
2015	40	120	180

In a series RLC circuit at resonance(A) Impedance is maximum(B) \( X_c = X_L \)(C) Z = R(D) \( \omega = \frac{1}{\sqrt{LC}} \)Choose the correct answer from the options given below:

Step-by-step Solution

In a series RLC circuit at resonance
(A) Impedance is maximum
(B) \( X_c = X_L \)
(C) Z = R
(D) \( \omega = \frac{1}{\sqrt{LC}} \)
Choose the correct answer from the options given below: