A positive point charge moves straight upward at constant speed
PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
A positive point charge moves straight upward at constant speed. At the same instant, a negative test charge is located directly east of the source charge and is moving straight south with the same speed. Which of the following indicates the direction of the magnetic force acting on the test charge at that instant?
(a) into the page
(b) toward the west
(c) toward the east
(d) out of the page