PYQ Vault

Current through a pure capacitor or inductor connected to an a.c. supply

This type of question, asked 9 times: May 2022 S1, 3 May 2023 S1, 3 May 2023 S2, 14 May 2024 S2, 19 Apr 2025 S1, 19 Apr 2026 S1, 13 May 2026 S2, 15 May 2026 S1, 15 May 2026 S2. All 10 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    May 2022 S1

    16
    A capacitor of capacitance 50 μF50\,\mu\text{F} is connected to a.c. source e=220sin⁡50te = 220\sin 50t (e in volt, t in second). The value of peak current is

    Tap an option to check your answer.

  2. Question 2

    3 May 2023 S1

    5
    An alternating voltage v=2002sin⁡(100t)v=200\sqrt{2}\sin(100t) is connected to a 1 μF1\,\mu\text{F} capacitor through an a.c. ammeter. The reading of the ammeter shall be

    Tap an option to check your answer.

  3. Question 3

    3 May 2023 S2

    46
    A 42 mH inductor is connected to 200 V, 50 Hz a.c. supply. The r.m.s. value of current in the circuit will be nearly [Take π=227\pi=\frac{22}{7}]

    Tap an option to check your answer.

  4. Question 4

    14 May 2024 S2

    16
    An alternating voltage E=2002sin⁡(100t)E = 200\sqrt{2}\sin(100t) volt is connected to a 1 μF1\,\mu F capacitor through an AC ammeter. The reading of the ammeter shall be

    Tap an option to check your answer.

  5. Question 5

    19 Apr 2025 S1

    39
    An alternating voltage E=1002sin⁡(50t)E = 100\sqrt{2}\sin(50t) is connected to a 2μ F2\mu\text{ }F capacitor through an a.c. ammeter. The ammeter reading will be

    Tap an option to check your answer.

  6. Question 6

    19 Apr 2026 S1

    138
    An alternating voltage e=1502sin⁡100te = 150\sqrt{2}\sin 100t volt is applied to a capacitor of capacity 2 μF2\ \mu\mathrm{F}. The root mean square value of current in the circuit is

    Tap an option to check your answer.

  7. Question 7

    13 May 2026 S2

    139
    An alternating voltage V=2002sin⁡(100t)V = 200\sqrt{2}\sin(100t) volt is connected to a 1 μF1\ \mu\mathrm{F} capacitor through an a.c. ammeter. The reading of the ammeter will be

    Tap an option to check your answer.

  8. Question 8

    13 May 2026 S2

    137
    An inductance of negligible resistance, whose reactance is 120 Ω120\,\Omega at 200200 Hz is connected to a 240240 V, 6060 Hz Power line. The current in the inductor is

    Tap an option to check your answer.

  9. Question 9

    15 May 2026 S1

    136
    An alternating voltage V=2002sin⁡(100t)V = 200\sqrt{2}\sin(100t) volt is connected to 1 μF1\ \mu F capacitor through a.c. ammeter. The reading of ammeter is

    Tap an option to check your answer.

  10. Question 10

    15 May 2026 S2

    139
    An alternating voltage V=2002sin⁡(100t)V = 200\sqrt{2}\sin(100t) volt is connected to 1 μF1\,\mu F capacitor through ammeter (AC). The reading of ammeter is (in mA)

    Tap an option to check your answer.