PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
Charged particles of mass m and charge q , moving with a speed v , enter a magnetic field of magnetic flux density B , perpendicularly. Inside the magnetic field, the particles move with a circular path of radius r . Which of the following changes would, by itself, increase the radius of the circular path?
(1) Increasing q
(2) Increasing m
(3) Increasing B
(4) Decreasing v