A proton enters a magnetic fiedl of flux density `1.5"weber"//m^(2)` with a velocity of
Channel: Doubtnut
Date: 2021-11-02

A proton enters a magnetic fiedl of flux density `1.5"weber"//m^(2)` with a velocity of `2xx10^(-7)m//sec` at an angle of `30^(@)` with the field. The force on the proton will be