Q12. Match List - I with List - II.
List - I
(A) The current lags behind the emf by π/4 in phase
(B)

Q: What is the correct answer for CUET UG Physics Q12?

The correct answer is b. Let's match the phase relationships in AC circuits: (A) The current lags behind the emf by π/4 in phase: This implies the voltage leads the current by π/4. This occurs in an AC circuit with both resistance and inductance in series (an RL circuit), where the inductive reactance causes the current to lag. So, (A) matches (II). (B) The e.m.f. lags behind the current by π/4 in phase: This implies the

Q: Q12. Match List - I with List - II. List - I (A) The current lags behind the emf by π/4 in phase (B) The e.m.f. lags behind the current by π/4 in phase (C) The current lags behind the e.m.f. in phase…

The correct answer is b. Let's match the phase relationships in AC circuits: (A) The current lags behind the emf by π/4 in phase: This implies the voltage leads the current by π/4. This occurs in an AC circuit with both resistance and inductance in series (an RL circuit), where the inductive reactance causes the current to lag. So, (A) matches (II). (B) The e.m.f. lags behind the current by π/4 in phase: This implies the

Q: What are the options for this CUET UG Physics question?

A. (A)-(I), (B)-(III), (C)-(IV), (D)-(II) · B. (A)-(II), (B)-(IV), (C)-(I), (D)-(III) · C. (A)-(II), (B)-(III), (C)-(IV), (D)-(I) · D. (A)-(IV), (B)-(II), (C)-(I), (D)-(III)

Question

Q12. Match List - I with List - II.
List - I
(A) The current lags behind the emf by π/4 in phase
(B) The e.m.f. lags behind the current by π/4 in phase
(C) The current lags behind the e.m.f. in phase by π/2
(D) The e.m.f. lags behind the current in phase by π/2
List - II
(I) A.C. circuit containing only an inductor
(II) A.C. circuit with resistance and inductances in series
(III) A.C. circuit containing only as capacitor
(IV) A.C. circuit with resistance and capacitor in series
Choose the correct answer from the options given below:
(a) (A)-(I), (B)-(III), (C)-(IV), (D)-(II)
(b) (A)-(II), (B)-(IV), (C)-(I), (D)-(III)
(c) (A)-(II), (B)-(III), (C)-(IV), (D)-(I)
(d) (A)-(IV), (B)-(II), (C)-(I), (D)-(III)

FirstInTest · Accepted Answer

Let's match the phase relationships in AC circuits:
(A) The current lags behind the emf by π/4 in phase: This implies the voltage leads the current by π/4. This occurs in an AC circuit with both resistance and inductance in series (an RL circuit), where the inductive reactance causes the current to lag. So, (A) matches (II).
(B) The e.m.f. lags behind the current by π/4 in phase: This implies the current leads the voltage by π/4. This occurs in an AC circuit with both resistance and capacitance in series (an RC circuit), where the capacitive reactance causes the current to lead. So, (B) matches (IV).
(C) The current lags behind the e.m.f. in phase by π/2: This is the characteristic behavior of a purely inductive circuit, where the voltage across the inductor leads the current through it by 90 degrees (π/2 radians). So, (C) matches (I).
(D) The e.m.f. lags behind the current in phase by π/2: This is the characteristic behavior of a purely capacitive circuit, where the voltage across the capacitor lags the current through it by 90 degrees (π/2 radians). So, (D) matches (III).
Combining these, the correct option is (A)-(II), (B)-(IV), (C)-(I), (D)-(III).

Answer

(A)-(I), (B)-(III), (C)-(IV), (D)-(II)

Answer

(A)-(II), (B)-(IV), (C)-(I), (D)-(III)

Answer

(A)-(II), (B)-(III), (C)-(IV), (D)-(I)

Answer

(A)-(IV), (B)-(II), (C)-(I), (D)-(III)

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