A positive ion moves with constant speed through a region that contains a uniform…
PHYSICS · Single correct · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism
Problem
A positive ion moves with constant speed through a region that contains a uniform magnetic field. Which of the following angles between the ion’s velocity vector and the magnetic field will result in the smallest possible magnetic force on the ion?
(a) 90∘
(b) 0∘
(c) 135∘
(d) 45∘