Match List - I with List - II Choose the most appropriate answer from the options given below: List - I List - II (a) Phase difference between current and voltage in a purely resistive AC circuit (i) π/2; current leads voltage (b) Phase difference between current and voltage in a pure inductive AC circuit (ii) zero (c) Phase difference between current and voltage in a pure capacitive AC circuit (iii) π/2; current lags voltage (d) Phase difference between current and voltage in an LCR series circuit (iv) tan ⁻¹((XC - XL)/(R)) (a) (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv) (b) (a)-(i), (b)-(iii), (c)-(iv), (d)-(ii) (c) (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i) (d) (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)

Answer: (a). Pure resistor: phase difference zero, (a)-(ii). Pure inductor: π/2, current lags voltage, (b)-(iii). Pure capacitor: π/2, current leads voltage, (c)-(i). LCR series: φ = tan ⁻¹((XC - XL)/(R)), (d)-(iv). So the answer is (a).

Match List - I with List - II Choose the most appropriate answer from… | JEE Main 2021 (17 Mar, Shift 2)

Q52JEE Main 2021 · 17 MAR · SHIFT 2Easy

Pure R, L and C Circuits

Match List - I with List - II

Choose the most appropriate answer from the options given below:

	List - I		List - II
(a)	Phase difference between current and voltage in a purely resistive AC circuit	(i)	$\frac{\pi}{2}$ ; current leads voltage
(b)	Phase difference between current and voltage in a pure inductive AC circuit	(ii)	zero
(c)	Phase difference between current and voltage in a pure capacitive AC circuit	(iii)	$\frac{\pi}{2}$ ; current lags voltage
(d)	Phase difference between current and voltage in an LCR series circuit	(iv)	$\tan^{-1}\left(\frac{X_C - X_L}{R}\right)$

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Answer: (a)

Pure resistor: phase difference zero, (a)-(ii).
Pure inductor: $\frac{\pi}{2}$ , current lags voltage, (b)-(iii).
Pure capacitor: $\frac{\pi}{2}$ , current leads voltage, (c)-(i).
LCR series: $\phi = \tan^{-1}\left(\frac{X_C - X_L}{R}\right)$ , (d)-(iv).
So the answer is (a).

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Pure R, L and C Circuits question from JEE Main 2021 (17 Mar, Shift 2)

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