Phase between current and voltage in resistive, inductive and capacitive circuits

This type of question, asked 3 times: 2021 Paper 8, 2021 Paper 13, 4 Apr 2024. All 3 questions below, oldest first.

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Question 1

2021 Paper 8

\frac{\pi}{2}

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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Question 2
2021 Paper 13
2 $If an AC source is connected to a capacitor in series. Then which of the graphs relating current and emf is correct?$
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Question 3
4 Apr 2024
20 $In an ac circuit, the instantaneous current is zero, when the instantaneous voltage is maximum. In this case, the source may be connected to: (A) pure inductor. (B) pure capacitor. (C) pure resistor. (D) combination of an inductor and capacitor. Choose the correct answer from the options given below:$
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