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soso
Jan14-04, 08:53 PM
An electron is accelerated from rest through a potential difference of 1.5Mv. what is the final energy of teh electron.
chroot
Jan14-04, 09:13 PM
1.5 MeV.

- Warren
soso
Jan14-04, 09:26 PM
Sorry.. i do not understand the answer... can u please provide more detail.. sorry for the inconvenience... thank you.
chroot
Jan14-04, 09:40 PM
Look up the definition of the unit of energy called an "electron volt."

- Warren
soso
Jan14-04, 09:43 PM
I think the anser has to be with the units Jouls and using the formula w=v*Q
chroot
Jan14-04, 09:47 PM
Do what I ask -- I'm not misleading you. Look up the unit called the "electron volt."

In fact, here's a definition:

http://hyperphysics.phy-astr.gsu.edu/hbase/electric/ev.html#c2

- Warren
soso
Jan14-04, 09:50 PM
I understand the concept of the electron volt.. but why is the answer 1.5 Mev.
chroot
Jan14-04, 09:53 PM
The energy acquired by an electron when accelerated through a potential difference of 1 volt is 1 electron volt. The energy acquired by an electron when accelerated through a potential difference of 1.5 MV is 1.5 MeV.

- Warren
soso
Jan14-04, 09:58 PM
Warren- thank you so much for your help.. ur a life saver.. i really appreciate it.. take care.
chroot
Jan14-04, 10:00 PM
Originally posted by soso
Warren- thank you so much for your help.. ur a life saver.. i really appreciate it.. take care.
Does the answer make complete sense? I want to make sure you understand how what I just said comes directly from the definition of the eV.

- Warren