Kinetic Energy = charge x potential difference....... (I). We all know K.E is always positive. But when considered the charge of an electron which is negative in (I) eqation, the K.E becomes negative. HOW IS THIS POSSIBLE. please give me an explanation.
Answers
Answered by
1
here potential difference is zero
and hence K.E. = positive
hence total energy = negative
It is the energy of the atomic system. Individual electrons are singled out because their kinetic energies change more than the kinetic energy of the rest of the atom in going from one orbital to another or in being knocked out of an atom. However, the very important potential energy is not in the electron.
and hence K.E. = positive
hence total energy = negative
It is the energy of the atomic system. Individual electrons are singled out because their kinetic energies change more than the kinetic energy of the rest of the atom in going from one orbital to another or in being knocked out of an atom. However, the very important potential energy is not in the electron.
GoodEvil:
But what if an electron is accelerated through a potential difference..... Here the potential difference is not zero
then the potential difference will be negative too
How.... Can you please explain a bit.... hope i am nit bothering you....
not*
Answered by
4
Kinetic energy is always positive. It is always equal to 1/2 m v^2.
KE = (-e) * V
When an electron goes from lower to higher potential then electron gains KE. So V is negative.
If V is positive then the electron decelerates and loses kinetic energy and slows down.
KE = (-e) * V
When an electron goes from lower to higher potential then electron gains KE. So V is negative.
If V is positive then the electron decelerates and loses kinetic energy and slows down.
Click on the thanks button above
But when V is positive.... wouldnt the kinetic energy by negative??
beacause the charge on electron is still negative
please reply??
Similar questions