HSC question 23 ( 2002) (1 Viewer)

[Shoom]

http://www.boardofstudies.nsw.edu.au/hsc_exams/hsc2002exams/pdf_doc/physics_02.pdf

Hi
I cant do b , why do we use the left hand push rule instead of right hand push rule, someone please explain this direction of positive particles and why electrons is oppisite?


So confused

 

[Arowana21]

cos it is induced current, u dont need to use left hand, all u need to know is the direction of the force according Lenz's law which states that the direction of the induced emf is such that it creates a force opposing the force that first created it.