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The magnetic force acting on a charged p...

The magnetic force acting on a charged particle of charge `-2muC` in a magnetic field of 2 T acting in `y-direction`, when the particle velocity is `(2hati+3hatj)xx10^(6) "ms"^(-1)` is

A

8N in z – direction

B

8N in z – direction

C

4N in z – direction

D

8N in y – direction

Text Solution

Verified by Experts

The correct Answer is:
B
`vecF=q(vecv xx vecB)`
`=-2 xx 10^(-6)[(2 hati +3 hatj) xx 10^(6) xx 2 hatj]`
`=-(8N)hatk`
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