JEE · NEET Previous Year Question

A current carrying solenoid is placed vertically and a particle of mass m with charge Q is released from rest. The particle moves along the axis of solenoid. If g is acceleration due to gravity then the acceleration

Topic: JEE PYQ

Answer: D. Full step-by-step solution below.

  1. Aof the charged particle will satisfy:(a)
  2. B
  3. C
  4. D

Correct answer: D

Solution

(d) Inside a solenoid, magnetic field is uniform and parallel to the axis.
Particle moves along the axis, so velocity is parallel to .
Magnetic force (since )
Only gravity acts on the particle.
Acceleration

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