A straight, insulated copper wire carries a steady current of toward the east. A…
PHYSICS · Multi-part · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism
Problem
A straight, insulated copper wire carries a steady current of 4.0A toward the east. A 0.25m segment of this wire is held so that the segment makes an angle of 30∘ above the horizontal plane. The wire segment passes through a region that contains a uniform magnetic field of magnitude 0.60T directed due north.
Neglect the weight of the wire segment.
(a) Determine the magnitude of the magnetic force acting on the 0.25m segment.
(b) Give the direction of this magnetic force using the compass directions north, south, east, west, up, and down.
(c) The segment is attached at its lower end to a frictionless pivot anchored in a laboratory bench. Calculate the magnitude of the force that the pivot must exert on the wire segment to keep it stationary.