JEE Main · 2024 · 04 Apr 2024 · Shift 2 · Chapter_pending

Match List I with List II

Choose the correct answer from the options given below :

Answer: A → I, B → IV, C → II, D → III

Solution

For AC circuits, comparing the phase of voltage

V

and current

I

Purely capacitive circuit: current leads voltage by $9 0^{\circ}$ (equivalently $V$ lags $I$ by $9 0^{\circ}$ ) — matches phasor diagram I.
Purely inductive circuit: voltage leads current by $9 0^{\circ}$ — matches phasor diagram IV.
LCR series at resonance: $X_{L} = X_{C}$ , the circuit is purely resistive, so $V$ and $I$ are in phase — matches phasor diagram II.
LCR series circuit (off resonance): $V$ and $I$ differ by some phase angle $ϕ$ between $0$ and $9 0^{\circ}$ — matches phasor diagram III.

So A-I, B-IV, C-II, D-III.

JEE Main · 2024 · 04 Apr 2024 · Shift 2 · Match the columns