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View Full Version : Accelerating an electron through a pot. diff.


Romperstomper
Nov4-04, 05:22 PM
An electron is accelerated through a potential difference of 240V, what is it's speed?

I used energy conservation to find it.

So, here's what I did:
0 = \frac{1}{2} m\Delta v^2 + q\Delta V

240V*(1.6*10^-19C) = \frac{1}{2} * (9.1*10^-31kg )* V^2

V = 9.2*10^6 m/s

Is this correct, or am I doing something wrong?

Doc Al
Nov4-04, 07:09 PM
Looks good to me.