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← JEE Main 2022 · 29 Jun · Shift 1
PhysicsSingle correct+4 / -1Question 40 of 90

JEE Main 2022 · 29 Jun · Shift 1, Physics question 40

For a series LCR circuit, I vs ω\omega curve is shown :

(a) To the left of ωr\omega_r, the circuit is mainly capacitive.

(b) To the left of ωr\omega_r, the circuit is mainly inductive.

(c) At ωr\omega_r, impedance of the circuit is equal to the resistance of the circuit.

(d) At ωr\omega_r, impedance of the circuit is 0.

Choose the most appropriate answer from the options given below :

Resonance curve: current I against ω, rising to I_max at ω_r and falling on either side.
Choose one option
Answer and worked solution

Official answer: C

Below resonance XC>XLX_C>X_L, so the circuit is capacitive (a). At resonance Z=RZ=R (c).

(C)