- #1
theBEAST
- 364
- 0
I have the following formula on my formula sheet:
ΔU = U_a - U_b = q(V_a - V_b)
I was wondering if 'a' is final and 'b' is initial or is it the other way around? Also when I plug in my charge q into the formula, if it was a negative charge do I plug the negative sign into the formula? I realize that some formulas assume that you plug in the magnitude of the charge so I am not so sure about this formula... Thanks!
ΔU = U_a - U_b = q(V_a - V_b)
I was wondering if 'a' is final and 'b' is initial or is it the other way around? Also when I plug in my charge q into the formula, if it was a negative charge do I plug the negative sign into the formula? I realize that some formulas assume that you plug in the magnitude of the charge so I am not so sure about this formula... Thanks!