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AC Through R, L and C for NEET: 15 solved questions

Real NEET paper questions on ac through r, l and c, part of alternating current. Each opens with the options, the correct answer and a step-by-step solution. Papers run from 1992 to 2024. No sign-in needed to read them.

What this topic asks

• Behaviour of R, L and C separately — 5 questions
• Reactance and frequency — 4 questions
• Phase relationships and phasors — 3 questions
• Charging transients and time constant — 3 questions

All 15 questions with solutions

• In the circuit shown, an inductance L is connected to an ac source. The current flowing in the circuit is I=I… NEET 2024 Re
• A 10 μF capacitor is connected to a 210 V, 50 Hz source as shown in the figure. The peak current in the circu… NEET 2024
• Given below are two statements. Statement I: In an ac circuit, the current through a capacitor leads the volt… NEET Re-2022
• An inductor of inductance 2 mH is connected to a 220 V, 50 Hz ac source. Let the inductive reactance in the c… NEET Re-2022
• For very high frequencies, the effective impedance of the circuit shown in the figure will be: the source fee… NEET 2023
• A 40 μF capacitor is connected to a 200 V, 50 Hz ac supply. The rms value of the current in the circuit is, n… NEET 2020
• A small signal voltage V(t)=V₀ sin ω t is applied across an ideal capacitor C. Then NEET 2016 Phase-I
• A coil of self-inductance L is connected in series with a bulb B and an ac source. The brightness of the bulb… NEET 2013
• The current I in an inductance is varying with time according to the plot shown in the figure: it rises linea… NEET 2012
• In an ac circuit, an alternating voltage e=200√2 sin 100t volt is connected to a capacitor of capacity 1 μF.… NEET 2011
• Two cables of copper are of equal length. One of them has a single wire of cross-sectional area A, while the… NEET 1994
• A capacitor of capacity C has reactance X. If the capacitance and the frequency become double, then the react… NEET 2001
• In the circuit given in the figure, A₁ and A₂ are ammeters, one in a branch containing a capacitor and the ot… NEET 1999
• When the key K is pressed at time t=0 in the circuit shown, which of the following statements about the curre… NEET 1995
• The time constant of a C-R circuit is NEET 1992