Question

A beam of electrons (which have negative charge) is coming straight toward you. You place a...

A beam of electrons (which have negative charge) is coming straight toward you. You place a magnet as shown directly above the beam. The magnetic field from the magnet points straight down. Which way will the electron beam deflect?

ANSWER is to the LEFT, but when I do the right hand rule - I keep getting right. Please explain using the right hand rule, not mathematically

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Answer #1

open your roght hand in such a way that your open fingers and thumb makes right angle.

fingers = direction of magnetic field

thumb = direction of motion of chrlarged particle

palm = direction of force on + ve charge

opposite face pf palm j force on negative charge

now if you points direction of thumb ( direction of electron beam) towards you and fingers points ( downward( direction of magnetic field) then the opposite face of your palm ( to the left ) points direction of applied force on electron.

===============

do comments in case any doubt, will reply for sure.. Goodluck

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