Question

how much energy would an electron acquire if it moved through a potential difference of 100kV?

Answer 1

E = eV
where e is electron charge is equal to 1.67 x 10^-19. and V is potential different

Answer 2

great! thank you :)

Answer 3

i have one more...what is the force per meter of lenght on a wire carrying a .5A current due to a .5 tesla-magnetic field?

Answer 4

Answer is very simple in natural units:
Energy will be 100 keV

Answer 5

Use \[F = BIL \] for that one, but you will solve for
\[ \frac{F}{L} \] to get the force per unit length.