Target Exam

CUET

Subject

Physics

Chapter

Alternating Current

Question:

Match List-l has four graphs showing variation of opposition to flow of ac versus frequency with circuit characteristic in List-II.

 LIST - I   LIST - II 
 (A)   (I) Impedance 
 (B)   (II) Capacitive reactance 
 (C)   (III) Inductive reactance 
 (D)   (IV) Resistance 

Choose the correct answer from the options given below.

Options:

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

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

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

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

Correct Answer:

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

Explanation:

resistance is independent of frequency 

Capacitive reactance is given as $ X_C = \frac{1}{\omega C}$

Inductive reactance is $ X_L = \omega L$

Impedance is $ \sqrt{R^2 +(X_c - X_L)^2}$

The correct answer is Option (2) → (A) - (IV), (B) - (III), (C) - (II), (D) - (I)