As shown in the diagram an aluminium rod 'AB' is suspended horizontally between the two poles of a strong…
As shown in the diagram an aluminium rod 'AB' is suspended horizontally between the two poles of a strong horse shoe magnet in such a way that the axis of rod is horizontal and the direction of the magnetic field is vertically upward. The rod is connected in series with a battery and a key.
State giving reason :
(a) What is observed when a current is passed through the aluminum rod from end B to end A ?
(b) What change is observed in a situation in which the axis of the rod 'AB' is moved and aligned parallel to the magnetic field and current is passed in the rod in the same direction ?
Solution
(a)
Rod AB would get displaced
Reason: When a current carrying conductor is placed in an external magnetic field perpendicularly, it experiences a force.
(b) As current and magnetic field are parallel, there will be no force experienced by the conductor hence no displacement in rod.
