The magnetic force acting on a charged particle of charge `-2 muC` in a magnetic field of `2 T` acting `y` direction, when the particle velocity is `(2i + 3 hat(j)) xx 10^(6) ms^(-1)`, is

Options

A. N in-z direction
B. 4N in z direction
C. N in y direction
D. 8 in z direction

Answer

A

Explanation

`vecF = q(vecv xx vecB) = -2 xx 10^6 (2 hati + 3 hatj) xx 10^6 xx 2T hatj `
` = - 8 hatk` (8N along -ve z-axis)
It should be conneted in parallel