Write a short note on the force acting on a current - carrying conductor placed in a external magnetic field .

Explanation

Oersted discovered that a current - carrying conductor exerts a force on a compass needle (i.e., on small bar magnetic ) placed near it.
Ander Ampere suggested that the reverse should also be ture i.e., a magnet must also exet an equal and opposite force on a current - carrying conductor , experimens supports this .
Thus, when a current - carrying conductor is placed in a magnetic field , it experiences a froce , except , when it is placed parallel to the magnetic field , it experiences a froce , except , when it is placed parallel to the magnetic field .
The froce acting on a current -carrying conducotr in magnetic field is due to the interaction between magnetic field (produced) due to the current - carrying conductor and the external magnetic field in which the conductor is placed.