2002 question 25 helP! (1 Viewer)

[lil_kimmy]

http://www.boredofstudies.org/courses/science/physics/2002_Physics_HSC_Exemplar_Q25_BOS.pdf

can someone explain the how to get the direction of the magentic field in part C.
thank you

 

[helper]

Final Answer for 2004

Electric field is attracting electron up, so magnetic force must be acting down.

Right Hand Palm Rule

Palm faces down as force is down.
Thumb points left as current is oposite direction to electrons.

Result Fingers point into page which is the magnetic field