Describe the activity that shows that a current-carrying conductor experiences a force perpendicular to its length and the external magnetic field. How does Fleming's left-hand rule help us to find the direction of the force acting on the current carrying conductor?

Explanation

Aim To show that force is exreted on a current carrying conductor placed in a strong magnetic field.
Materials Required
A conducting rod (AB), connecting wires, horse shoe magnet, battery, switch and clamp stand.
Procedure
(i) Connect the coducting rod AB to the battery and key.
(ii) Place a strong horse shoe magnet in such a way that the rod AB lines between the poles with magnetic field directed upwards, i.e., N-pole is vertically above the rod.
(iii) Plug in the key.

Observation
A current-carrying rod AB experiences a force perpendicular to its length and the magnetic field.
Based on above observatio, it can be said that when a current carrying conductor is placed within a magnetic field, the conductor experiences deflectio. Flaming's left hand rule explains the direction of displacement in this case. Let us assume that the current is moving in anticlockwise direction in hte loops. It that case, the magnetic field would be in clockwise direction at the top of the loop. Moreover, it would be in anticloclwise direction at the bottom of the loop