For a straight conductor of fixed length in a uniform magnetic field
PHYSICS · Single correct · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism
Problem
For a straight conductor of fixed length in a uniform magnetic field, the current is doubled and simultaneously the angle between the wire and the field is changed from 60∘ to 30∘. How does the magnitude of the magnetic force change?
(a) It remains unchanged.
(b) It decreases by about 42%.
(c) It increases by about 16%.
(d) It becomes double.