PHysics! Assume the magnetic field in this room points from the floor ot the

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ceiling. if an ELECTRON is fired? Assume the magnetic field in this room points from the floor to the ceiling. if an electron is fired from your LEFT to your RIGHT, what will be the direction of the magnetic force on the electron?
Note: this is an electron, a negatively charged object.
(a) toward you
(b) away from you
(c) toward the floor
(d) to the right
(e) downward.

I know how to do the RIGHT Hand Rule for if it's a PROTON. but i do'nt know how it goes for an electron. do you use the Right hand rule as well??
thanks.
 
F = q v x B

The charge (q) of an electron is negative. So do what you do for a proton to calculate the cross product. And then do the opposite of that.

And yes, you could use your left hand. But that's probably a bad habit. I'd suggest using the right hand and then mentally flipping it to account for the negative charge.
 
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