Alevel physics help
can anyone help with qs b. I get that the electric filed and magnetic field should be of opposite direction and same strenght. I just don't know how to get direction of magnetic field in this case.
Dont u just use Flemigs left hand rule cos to get magnetic field, u need force which is its inital direction plus the current which can be worked out by the movement of the positive particles due to the electric field
Ahh got it thank you!
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