An electron is travelling East through a magnetic field directed south. In which direction is the force on the electron?

Question

anonymous · Answer

|dw:1405210912522:dw|
into the Earth
I wrote it wrong.

anonymous · Answer

F = q ( V x B )

anonymous · Answer

cross multiplication.

anonymous · Answer

ok so the direction of force would be downward?

anonymous · Answer

Right. Do you know how to get the resultant direction of cross multiplication.

anonymous · Answer

No I don't how

anonymous · Answer

The most important thing is to know the arrangement of 2 vectors and which is first as V x b doesn't equal B x V.
the equation F= q (V x B ) 
Then draw them |dw:1405211325283:dw|
and use the right hand rule to get the direction by starting from first one in the cross product which V.
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