a conductor of 3m length is moving perpendicular to its length as well as magnetic field of 10-3 T with a speed of 102 m/s , then force required to move it with this constant speed is
1) 0.3 N
2) 0.9
3) 0
4) 3*10-3
Force applied by the magnetic field in rod when it is moving perpendicular to the field is given by:
f = ILB
where I is the current flowing through the rod
L is the length of the rod
B is the magnetic field
Since no current is flowing through the rod therefore force on the rod is zero.
hence zero force is require to move the conductor with constant speed.
f = ILB
where I is the current flowing through the rod
L is the length of the rod
B is the magnetic field
Since no current is flowing through the rod therefore force on the rod is zero.
hence zero force is require to move the conductor with constant speed.