JEE Main 2026 · PhysicsNumerical answerNumerical valueMediumMulti-step

JEE Main 6 April 2026, Shift 2, Physics Q48

Question 48 of 75 in this shift, Physics question 23 of 25, Section B.

A moving coil of galvanometer when shunted with 2

\Omega

resistance gives a full scale deflection for a current of 500 mA. When a resistance of 470

\Omega

is connected in series it gives a full scale deflection for 10 V potential applied on it. The value of resistance of galvanometer coil is __________

\Omega

Official answer

NTA final key.

Chapter: Moving Charges and Magnetism
Topic: Wheatstone Bridge
Idea tested: Shunting Galvanometer for Protection

Same idea in other shifts

Asked 3× in all

9 Apr 2024, Shift 1 · Q50A galvanometer has a coil of resistance $200\ \Omega$ with a full scale deflection at $20\ \mu$ A. The value of resistance to be added to…EasySingle correct
29 Jan 2024, Shift 1 · Q42A galvanometer having coil resistance $10\,\Omega$ shows a full scale deflection for a current of 3mA. For it to measure a current of 8A,…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.