AP EAMCET2006PhysicsMagnetic Properties of Matter
The effect due to uniform magnetic field on a freely suspended magnetic needle is as follows :
Options
- Aboth torque and net force are present
- Btorque is present but no net force
- Cboth torque and net force are absent
- Dnet force is present but not torque
Correct answer
B. torque is present but no net force
Step-by-step solution
When a magnetic needle is placed in a uniform magnetic field, equal and opposite forces act on the poles of the needle which give rise to a torque, but not net force.