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Friday, 9 October

JEE Main 2024 · PhysicsNumerical answerNumerical valueMediumMulti-step

JEE Main 8 April 2024, Shift 1, Physics Q60

Question 60 of 90 in this shift, Physics question 30 of 30, Section B.

A square loop PQRS having 10 turns, area 3.6×10−3 m23.6\times10^{-3}\ \mathrm{m^2} and resistance 100 Ω100\ \Omega is slowly and uniformly being pulled out of a uniform magnetic field of magnitude B=0.5B=0.5 T as shown. Work done in pulling the loop out of the field in 1.0 s is ________ ×10−6\times10^{-6} J.

The figure, in words

Square loop PQRS (P top-left, Q top-right, R bottom-right, S bottom-left) lying in a uniform magnetic field directed into the page (crosses); the loop is pulled to the left with velocity v (arrow pointing left from the left side).

Official answer

3

NTA final key.

Chapter
Electromagnetic Induction
Topic
Faraday's Law
Idea tested
Total Heat Dissipation in Transient EMI

Same topic in other shifts

All Faraday's Law questions
  1. 2 Apr 2026, Shift 1 · Q38When a coil is placed in a time dependent magnetic field the power dissipated in it is PP. The number of turns, area of the coil and…MediumSingle correct
  2. 5 Apr 2026, Shift 2 · Q36A metal rod of length LL rotates about one end at origin with a uniform angular velocity ω\omega. The magnetic field radially falls off…HardSingle correct
  3. 5 Apr 2026, Shift 2 · Q50A circular loop of radius 20 cm and resistance 2 Ω\Omega is placed in a time varying magnetic field B⃗=(2t2+2t+3) T\vec{B}=(2t^2+2t+3)\ \mathrm{T}. At…EasyNumerical value
  4. 6 Apr 2026, Shift 2 · Q39A square loop of side 2 cm is placed in a time varying magnetic field with magnitude as B=0.4sin⁡(300t)B=0.4\sin(300t) Tesla. The normal to the plane…MediumSingle correct
  5. 9 Apr 2024, Shift 2 · Q45A square loop of side 1515 cm being moved towards right at a constant speed of 22 cm/s as shown in figure. The front edge enters the 5050…EasySingle correctHas a figure
  6. 29 Jan 2024, Shift 1 · Q58A square loop of side 10 cm and resistance 0.7 Ω0.7\,\Omega is placed vertically in east-west plane. A uniform magnetic field of 0.20 T0.20\ T is…EasyNumerical value

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. This question needs a figure we do not reproduce; it is described in words above. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.