A fixed observation point lies directly south of a point charge that is initially and…
PHYSICS · Subjective · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism
Problem
A fixed observation point lies directly south of a point charge that is initially +q and moving straight upward. The charge is simultaneously replaced by an equal-magnitude charge −q and its velocity is reversed so that it now moves straight downward. State how the direction of the magnetic field at the observation point changes, if at all, compared with the original situation, and explain briefly.