MHT CET202012 Oct 2020Morning ShiftPhysicsMagnetic Effects of CurrentActual
Two short bar magnets 'A and 'B' (having magnetic moments ' M ₁ ' and ' M ₂ ' respectively) are kept one above the other with their magnetic axis perpendicular to each other. If their resultant at a point on the axis of magnet ' A ' is inclined at 45^ with the axis of magnet A then the ratio of magnetic moments M ₂ M ₁ is [ 45^ =1 ]
Options
- A2: 1
- B2: 3
- C1: 2
- D3: 2
Correct answer
A. 2: 1
Step-by-step solution
B₁= 2 ₀ M₁ 4 d³ B₂= - ₀ M₂ 4 d³ 45= | B₂ B₁ |1= M₂ 2 M₁ M₂: N+2: 1 M₂: M₁=2: 1