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Saturday, 31 October

JEE Main 2022 · PhysicsMultiple choiceSingle correctEasyRecall

JEE Main 24 June 2022, Shift 2, Physics Q38

Question 38 of 90 in this shift, Physics question 8 of 30, Section A.

The soft-iron is a suitable material for making an electromagnet. This is because soft-iron has
  1. (1)low coercivity and high retentivity.
  2. (2)low coercivity and low permeability.
  3. (3)high permeability and low retentivity.Official answer
  4. (4)high permeability and high retentivity.

Official answer

Option 3

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.