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Saturday, 31 October

JEE Main 2022 · PhysicsMultiple choiceSingle correctEasyApplication

JEE Main 28 June 2022, Shift 2, Physics Q42

Question 42 of 90 in this shift, Physics question 12 of 30, Section A.

The space inside a straight current carrying solenoid is filled with a magnetic material having magnetic susceptibility equal to 1.2×10−51.2\times10^{-5}. What is fractional increase in the magnetic field inside solenoid with respect to air as medium inside the solenoid ?
  1. (1)1.2×10−51.2\times10^{-5}Official answer
  2. (2)1.2×10−31.2\times10^{-3}
  3. (3)1.8×10−31.8\times10^{-3}
  4. (4)2.4×10−52.4\times10^{-5}

Official answer

Option 1

NTA final key.

Chapter
Magnetism and Matter
Topic
No close match in our taxonomy
Idea tested
No close match in our taxonomy

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.