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 topic in other shifts

All Inductance questions

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6 Apr 2024, Shift 2 · Q44In a coil, the current changes from $-2$ A to $+2$ A in 0.2 s and induces an emf of 0.1 V. The self inductance of the coil is :EasySingle 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 42 of the 174 JEE Main shifts held from 2017 to 2026.