MHT CET202311 May 2023Morning ShiftPhysicsMagnetic Effects of CurrentActual
A cylindrical magnetic rod has length 5 ~cm and diameter 1 ~cm . It has uniform magnetization 5.3 10^3 ~A / m ^3 . Its net magnetic dipole moment is nearly
Options
- A1 10⁻² ~J / T
- B0.5 10⁻² ~J / T
- C2.5 10⁻² ~J / T
- D2.08 10⁻² ~J / T
Correct answer
D. 2.08 10⁻² ~J / T
Step-by-step solution
aligned & Magnetisation, M= m _ net V & m _ net = M V = M ( r ^2 l )= M d ^2 4 l & =5.3 10^3 3.142 ( 1 10⁻² 2 )^2 5 10⁻² & =2.08 10⁻² ~J / T & aligned