PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
Four identical particles, each of charge magnitude q, move through the same uniform magnetic field of magnitude B as described below:
A: speed 2v, angle to the field 30∘
B: speed v, angle to the field 90∘
C: speed v, angle to the field 60∘
D: speed 3v, angle to the field 0∘
Rank the particles in descending order of the magnitude of the magnetic force they experience. Show your working in one or two lines.