JEE Main 2024 · PhysicsMultiple choiceSingle correctMediumCalculation

JEE Main 29 January 2024, Shift 1, Physics Q50

Question 50 of 90 in this shift, Physics question 20 of 30, Section A.

The deflection in moving coil galvanometer falls from 25 divisions to 5 division when a shunt of

24\,\Omega

is applied. The resistance of galvanometer coil will be :

(1) $12\ \Omega$
(2) $96\ \Omega$ Official answer
(3) $100\ \Omega$
(4) $48\ \Omega$

Official answer

Option 2

NTA final key.

Chapter: Moving Charges and Magnetism
Topic: Wheatstone Bridge
Idea tested: Effect of Shunting the Galvanometer

Same topic in other shifts

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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.