A bar magnet oriented along the y axis can rotate about an axis parallel to the z axis. Its north pole initially points along j^. Assume that the length of the magnet is much smaller than the separation between it and the charge. As a result of magnetic interaction (i. e., ignore pure Coulomb forces) between the charge and the bar magnet, the magnet will
experience which of the following?

a. A torque due to the charge attracting the north pole of the magnet
b. A torque due to the charge attracting the south pole of the magnet
c. A torque only if one magnetic pole is slightly closer to the charge than the other
d. No torque at all

An charge with mass m and charge q is emitted from the origin, (x,y)=(0,0). a large, flat screen is located at x=l. there is a target on the screen at y position y(h), where y(h) > 0. in this problem, you will examine two different ways that the charge might hit the target. ignore gravity in this problem. 1.assume that the charge is emitted with velocity v(0) in the positive x direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive y direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l. 2.now assume that the charge is emitted with velocity v(0) in the positive y direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive x direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l.