I have read that the Z boson cannot change the flavour of a particle. So my assumption is that an interaction such as:
usanti -> udanti + Z
Is not possible, is this correct?
If we imagine a simple circuit with a battery and a capacitor with negligible internal resistance, the capacitor is charged up to a point where the voltage it stores is equal to the voltage of the battery. The battery has supplied an energy equal to V*I*T (voltage times current times time)...