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Saturday, 31 October

JEE Main 2022 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 28 June 2022, Shift 2, Physics Q43

Question 43 of 90 in this shift, Physics question 13 of 30, Section A.

Two parallel, long wires are kept 0.20 m apart in vacuum, each carrying current of xx A in the same direction. If the force of attraction per meter of each wire is 2×10−62\times10^{-6} N, then the value of xx is approximately :
  1. (1)1
  2. (2)2.4
  3. (3)1.4Official answer
  4. (4)2

Official answer

Option 3

NTA final key.

Topic
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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.