PHYSICS · Single correct · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism
Problem
Which of the following quantities, if increased while all the others remain constant, would NOT change the magnitude of the magnetic force exerted on a straight current-carrying wire placed in a uniform magnetic field?
(a) the magnitude of the current in the wire
(b) the electrical resistance of the wire
(c) the angle between the current direction and the magnetic field
(d) the length of the wire located inside the magnetic field region