Question

an electron moves with constant speed at right angles to a uniform magnetic flux, if the flux density were doubled, the force on the electron would be

A) unaffected
B) reduced to one month
C) halved
D) doubled
E) quadrupled

Answer 1

force=q*v*B, right?

Answer 2

i dno that's y m posting it here

Answer 3

F=qvB,
B1=2•B
F1 = qvB1 =qv2B =2F
D) doubled