Navigate

A magnetic force acting on a charged particle of charge -2µC in a magnetic field of 2T

A magnetic force acting on a charged particle of charge -2µC in a magnetic field of 2T acting in y direction, when the particle velocity is (2i + 3j) x 10⁶ m/s, is

Options

(a) 4 N in z direction
(b) 8 N in y direction
(c) 8 N in z direction
(d) 8 N in -z direction

Correct Answer:

8 N in -z direction

Explanation:

The magnetic force acting on the charged particle is given by F⃗ = q(v⃗ x B⃗)
= (-2 x 10⁻⁶) [ { 2i + 3j) x 10⁶} x (2i) ]
= – 4 (2k) = – 8k
Force is of 8N along -z-axis.

AIPMT2009
admin:

Related Questions

  1. Two bodies of masses m₁ and m₂ are initially at rest at infinite distance apart
  2. A body under the action of a force F⃗ = 6i⃗–8j⃗+10k⃗, acquires an accelerationof 1 m/s². The mass of this body must be
  3. One milligram of matter on convertion into energy will give
  4. The resultant of two forces, one double the other in magnitude, is perpendicular
  5. A current of 2 A is made to flow through a coil which has only one turn. The magnetic