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 occurs in an R-L series circuit (AC circuit with resistance and inductances in series) where the inductive reactance (XL) equals the resistance (R), making the phase angle tan⁻¹(XL/R) = tan⁻¹(1) = π/4. So, (A) matches (II).(B) The e.m.f. lags behind the current by π/4 in phase: This is equi

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 occurs in an R-L series circuit (AC circuit with resistance and inductances in series) where the inductive reactance (XL) equals the resistance (R), making the phase angle tan⁻¹(XL/R) = tan⁻¹(1) = π/4. So, (A) matches (II).(B) The e.m.f. lags behind the current by π/4 in phase: This is equi

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

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 occurs in an R-L series circuit (AC circuit with resistance and inductances in series) where the inductive reactance (XL) equals the resistance (R), making the phase angle tan⁻¹(XL/R) = tan⁻¹(1) = π/4. So, (A) matches (II).(B) The e.m.f. lags behind the current by π/4 in phase: This is equivalent to saying the current leads the emf by π/4. This occurs in an R-C series circuit (AC circuit with resistance and capacitor in series) where the capacitive reactance (XC) equals the resistance (R), making the phase angle tan⁻¹(XC/R) = tan⁻¹(1) = π/4. So, (B) matches (IV).(C) The current lags behind the e.m.f. in phase by π/2: This is a characteristic of a purely inductive AC circuit (AC circuit containing only an inductor). So, (C) matches (I).(D) The e.m.f. lags behind the current in phase by π/2: This is equivalent to saying the current leads the emf by π/2. This is a characteristic of a purely capacitive AC circuit (AC circuit containing only a capacitor). So, (D) matches (III).Therefore, the correct matching is (A)-(II), (B)-(IV), (C)-(I), (D)-(III), which corresponds to option (b).

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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