JEE Main 2022 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 26 June 2022, Shift 2, Physics Q44

Question 44 of 90 in this shift, Physics question 14 of 30, Section A.

A metallic conductor of length 1m rotates in a vertical plane parallel to east-west direction about one of its end with angular velocity 5

rad\ s^{-1}

. If the horizontal component of earth's magnetic field is

0.2 \times 10^{-4}\ T

, then emf induced between the two ends of the conductor is :

(1) $5\mu V$
(2) $50\mu V$ Official answer
(3) $5mV$
(4) $50mV$

Official answer

Option 2

NTA final key.

Chapter: Electromagnetic Induction
Topic: Faraday's Law
Idea tested: Rotational Motional EMF

Same idea in other shifts

Asked 5× in all

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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 108 of the 174 JEE Main shifts held from 2017 to 2026.