NEETPhysicsAlternating Current
Match the electrical behaviors described in List-I with the corresponding circuit combinations in List-II. List-I List-II (A) Allows steady DC, AC current lags the applied voltage (I) Pure Resistor (B) Blocks steady DC, AC current leads the applied voltage (II) Series LR circuit (C) Allows steady DC, AC current is in phase with the applied voltage (III) Series RC circuit (D) Blocks steady DC, AC current lags the appl
Options
- A(A)-(II), (B)-(III), (C)-(I), (D)-(IV)
- B(A)-(II), (B)-(IV), (C)-(I), (D)-(III)
- C(A)-(I), (B)-(III), (C)-(II), (D)-(IV)
- D(A)-(IV), (B)-(III), (C)-(I), (D)-(II)
Correct answer
A. (A)-(II), (B)-(III), (C)-(I), (D)-(IV)
Step-by-step solution
A pure resistor allows steady DC to flow, and in an AC circuit, the current and voltage are in phase. This matches (C) with (I). A series LR circuit allows steady DC to flow (since an inductor has zero reactance for DC), but in an AC circuit, the inductive reactance causes the current to lag the voltage. This matches (A) with (II). A series RC circuit blocks steady DC because the capacitor acts as an open circuit. In an AC circuit, the capacitive reactance causes the current to lead the voltage. This matches (B) wi