A particle of charge moves with velocity in a uniform magnetic field

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

Problem

A particle of charge

+2.0\,\mu\text{C}

moves with velocity

\vec v = (3\hat i + 2\hat j - \hat k)\times10^{6}\,\text{m s}^{-1}

in a uniform magnetic field

\vec B = (0.4\hat i - 0.2\hat j + 0.5\hat k)\,\text{T}

. Find the magnitude of the magnetic force on the particle. (a)

2.5\,\text{N}

(b)

0.6\,\text{N}

(c)

5.0\,\text{N}

(d)

3.9\,\text{N}