A narrow beam of identical charged particles moves horizontally from west to east
PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
A narrow beam of identical charged particles moves horizontally from west to east. When a uniform magnetic field of magnitude 0.02T is switched on vertically upward, the beam deflects toward the north. Identify whether the particles are positively or negatively charged and justify your answer in one sentence.