A tightly wound long solenoid has turns per unit length

PHYSICS · Single correct · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism

Problem

A tightly wound long solenoid has nn turns per unit length, radius rr, and carries a current ii. A particle of charge qq and mass mm is projected from a point on the axis in a direction perpendicular to the axis. The maximum speed for which the particle does not strike the solenoid is (a) μ0qrni2m\frac{\mu_0qrni}{2m} (b) μ0qrnim\frac{\mu_0qrni}{m} (c) 2μ0qrni3m\frac{2\mu_0qrni}{3m} (d) None of these

Related theory

Browse the problem library