A straight wire of length 0.50 m is hinged at one end and lies initially…
PHYSICS · Single correct · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism
Problem
A straight wire of length 0.50 m is hinged at one end and lies initially perpendicular to a uniform magnetic field, experiencing a force F₀. The wire is then rotated in its plane until the force becomes F₀/2. Through what angle has the wire been rotated from its initial position?
(a) 30°
(b) 45°
(c) 60°
(d) 75°