CUET · PHYSICS · PYQ PAPER 2023

The self inductance of an inductor does not depend on the :

A number of turns per unit length
B permeability of the medium inside the inductor
C area of cross-section of the inductor
D current flowing through the inductor

Verified Solution

Answer & Solution

Correct Answer

(D) current flowing through the inductor

Step-by-step Solution

Detailed explanation

Self-inductance \(L\) of a solenoid is given by \(L = \mu n^2 A l\). This formula shows \(L\) depends on permeability (\( \mu \)), number of turns per unit length (\( n \)), and cross-sectional area (\( A \)). It does not depend on the current flowing through the inductor.…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

Match List-I with List-II

List-I	List-II
(A) Charge on an electron	(I) 1
(B) Electric permittivity of free space	(II) \( 1.6 \times 10^{-19} \) C
(C) Number of lines of force from 1C of charge in free space	(III) \( 8.85 \times 10^{-12} \text{ C}^2\text{N}^{-1}\text{m}^{-2} \)
(D) Dieletric constant of vaccum	(IV) \( 13 \times 10^{11} \)

Choose the correct answer from the options given below:

CUET 2023 Easy

The dimension of magnetic induction can be written as

CUET 2023 Hard

Explore more questions on app

From CUET

Explore more questions on app