Target Exam

CUET

Subject

Physics

Chapter

Electrostatic Potential and Capacitance

Question:

Match List - I with List - II.

List – I

List – II

(A) Electric potential (V) due to a single charge

(I) $∝r^0$

(B) Electric flux due to a positive point charge through sphere of radius r

(II) $∝\frac{1}{r^2}$

(C) Electric intensity (E) due to a point charge

(III) $∝\frac{1}{r}$

(D) Electric intensity (E) due to dipole

(IV) $∝\frac{1}{r^3}$

Choose the correct answer from the options given below:

Options:

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

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

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

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

Correct Answer:

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

Explanation:

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

(A) Electric potential due to a single charge = $\frac{1}{4πε_0}\frac{q}{r}=∝\frac{1}{r}$ (III)

(B) Electric flux due to a positive charge through a surface = $\phi_{E}=\frac{Q(=1)}{ε_0}⇒∝r^0$ (I)

(C) Electric intensity due to a point charge, $E=\frac{1}{4πε_0}\frac{q(=1)}{r^2}⇒∝\frac{1}{r^2}$ (II)

(D) Electric intensity due to a dipole = $E∝\frac{1}{r^3}$ (IV)