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JEE Main 2024 · PhysicsNumerical answerNumerical valueHardCalculation

JEE Main 31 January 2024, Shift 1, Physics Q58

Question 58 of 90 in this shift, Physics question 28 of 30, Section B.

A small square loop of wire of side

l

is placed inside a large square loop of wire of side

L

(

L=l^2

). The loops are coplanar and their centers coincide. The value of the mutual inductance of the system is

\sqrt{x}\times10^{-7}\,H

, where

x=

_______.

Official answer

128

NTA final key.

Chapter: Electromagnetic Induction
Topic: Inductance
Idea tested: Mutual Inductance of Concentric Square Loops

Same idea in other shifts

Asked 2× in all

31 Aug 2021, Shift 1 · Q7A small square loop of side 'a' and one turn is placed inside a larger square loop of side b and one turn (b > > a). The two loops are…HardSingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.