Question

An electron is initially at rest in, but not on the axis of, a solenoid that is carrying a steady current I directed as shown in the cross section below (counterclockwise). The electron is initially at rest on the -x axis. The current in the solenoid is suddenly increased to 2I. The velocity of the electron immediately after this change is
a) in the + x direction
b)in the -x direction
c)in the +y direction
d)in the -y direction
e) non of the above

Answer 1

work out the velocity from right hand rule. Remember what current means in terms of conventional current.