When I ground something, how does the electrons actually flow into the earth? Since it is not a complete circuit whereby electrons flow back into the battery such as in cases like a battery connected to a bulb. I always thought a complete circuit was required so how can the electrons "choose" to flow into the earth without going back to the source? On another note, if my source has a pd of 10V, will the potential at the bulb be 10V and O st the earth's point of contact? When I touch the live or neutral wire, why won't the fuse melt? Is it because I'm taking the V=RI of my body and the circuit around it. So the resistance of me is very high so the I would be very low compared to when before I touch the live? But in that case, won't there be a parallel branch whereby one continue through the main circuit and another through me? So in that case what would be the explanation for this? Thanks for the help guys!