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Match List-I with List-II : List-I (a) ωL > 1/(ωC) (b) ωL = 1/(ωC) (c) ωL < 1/(ωC) (d) Resonant frequency List-II (i) Current is in phase with emf (ii) Current lags behind the applied emf (iii) Maximum current occurs (iv) Current leads the emf Choose the correct answer from the options given below :

1. (a) – (ii) ; (b) – (i) ; (c) – (iv) ; (d) – (iii)
2. (a) – (ii) ; (b) – (i) ; (c) – (iii) ; (d) – (iv)
3. (a) – (iii) ; (b) – (i) ; (c) – (iv) ; (d) – (ii)
4. (a) – (iv) ; (b) – (i) ; (c) – (ii) ; (d) – (iii)

Correct answer: (a) – (ii) ; (b) – (i) ; (c) – (iv) ; (d) – (iii)

Solution

The correct option matches the conditions of an RLC circuit: when inductive reactance exceeds capacitive reactance (ωL > 1/(ωC)), the current lags behind the emf; at resonance (ωL = 1/(ωC)), the current is in phase with the emf; when capacitive reactance exceeds inductive reactance (ωL < 1/(ωC)), the current leads the emf; and maximum current occurs at the resonant frequency.

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