Question

A tightly wound long solenoid has ‘n’ turns per unit length, a radius ‘r’ and carries a current I. A particle having charge ‘q’ and mass ‘m’ is projected from a point on the axis in a direction perpendicular to the axis. The maximum speed of the particle for which the particle does not strike the solenoid is

• A. \(\frac{\mu_onlqr}{m}\)
• B. \(\frac{\mu_onlqr}{2m}\)
• C. \(\frac{\mu_onlqr}{4m}\)
• D. \(\frac{\mu_onlqr}{8m}\)

Answer 1

The Correct Option is B

The correct answer is (B) : \(\frac{\mu_onlqr}{2m}\).