A uniform 1.5 T magnetic field points north. If an electron moves vertically downward (toward the ground) with a speed of 2.5 x 10^7 m/s through this field, what force (magnitude and direction) will act on it?
Charge of electron q=`-1.6xx10^(-19) C`
`` Velocity of electron v=`2.5xx10^7` m/s
magnetic field B=`1.5 T`
`=-1.6xx10^(-19)xx2.5xx10^(7)xx1.5 = 6.0xx10^(-12) N`