Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Current Electricity

Question:

Match List - I with List - II.

List - I

List – II

 (A) 

 Mobility

 (I)

 Ω m

 (B)

 Current density 

 (II)

 A m-2

 (C)

 Conductivity

 (III) 

 Ω-1 m-1 

 (D)

 Resistivity

 (IV)

 m2 V-1 s-1 

Choose the correct answer from the options given below:

Options:

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

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

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

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

Correct Answer:

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

Explanation:

Mobility $ \mu = \frac{v}{E} = \frac{m/s}{V/m} = m^2 V^{-1}s^{-1}$

Current density $ J = \frac{I}{A} = Am^{-2}$

Resistivity $ \rho = \frac{R.A}{l} = \Omega m$

Conductivity $\sigma = \frac{1}{\rho}= \Omega^{-1}m^{-1}$