Question

A partical having charge of `1.C` , mass `1kg` and speed `1m//s` enters a uniform magnetic field having magnetic induction of `1T` at an angle `0=30^(@)` between velocity vector and magnetic induction The pitch of its helical path is (in meters) .
A. `(sqrt3pi)/(2) `
B. `sqrt3pi`
C. `(pi)/(2)`
D. `pi`

Answer 1

Correct Answer - B
Pitch ` = V cos theta xx T = Vcostheta xx (2pim)/(qB) = sqrt3 pi` .