Question

Identify the condition under which the force acting on a charge moving through a uniform magnetic field is maximum.

(a) θ = 90^o

(b) θ = 180^o

(c) θ = 0^o

(d) θ = 360^o

The question was posed to me during an online exam.

The query is from Magnetic Force topic in division Moving Charges and Magnetism of Physics – Class 12

Answer 1

The correct answer is (a) θ = 90^o

The explanation is: When θ = 90^o  → Fm  is maximum.

Thus a charge experiences a maximum force when it moves perpendicular to the direction of the magnetic field. So, this is the condition when the force experienced is maximum.