^Some more useful situations

Some more useful situations

1. The ratio of magnetic dipole moment to angular momentum for a uniformly charged configuration

2. A current loop behaves like a magnetic of dipole moment M = A N I, here I → current in loop, A → loop area & N → its no. of turns.

3. A current loop placed of dipole moment  in external uniform magnetic field  experiences a torque, .

4. A current carrying conductor placed in uniform magnetic field experiences a force.

5. For a closed loop of any shape net force on it is zero, however depending upon direction of current & external magnetic field a tension T = RBI may produce.

6. Two straight parallel conductors experience a force per unit of their length due to the magnetic field of each other.