Which one of the following quantities is the magnetic force on a straight…
PHYSICS · Single correct · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism
Problem
Which one of the following quantities is the magnetic force on a straight current-carrying conductor directly proportional to, when all other relevant parameters are kept constant?
(a) Resistivity of the conductor
(b) Length of the conductor inside the field
(c) Square of the current
(d) cos(angle between conductor and field)