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Saturday, 31 October

JEE Main 2023 · PhysicsNumerical answerNumerical valueMediumCalculation

JEE Main 10 April 2023, Shift 2, Physics Q58

Question 58 of 90 in this shift, Physics question 28 of 30, Section B.

A square loop of side 2.0 cm is placed inside a long solenoid that has 50 turns per centimetre and carries a sinusoidally varying current of amplitude 2.5A and angular frequency 700 rad s−1^{-1}. The central axes of the loop and solenoid coincide. The amplitude of the emf induced in the loop is x×10−4x \times 10^{-4} V. The value of x is ________. (Take, π=227\pi = \frac{22}{7})

Official answer

44

NTA final key.

Chapter
Electromagnetic Induction
Topic
Faraday's Law
Idea tested
Magnetic Flux Calculation

Same idea in other shifts

Asked 3× in all
  1. 6 Apr 2023, Shift 1 · Q38The induced emf can be produced in a coil by A. moving the coil with uniform speed inside uniform magnetic field B. moving the coil with…EasyOther
  2. 26 Jun 2022, Shift 1 · Q42The magnetic flux through a coil perpendicular to its plane is varying according to the relation ϕ=(5t3+4t2+2t−5)\phi=(5t^3+4t^2+2t-5) Weber. If the…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 108 of the 174 JEE Main shifts held from 2017 to 2026.