A mostly correct video. Does electricity flow from the transformer to earth? Yes it does. The resistance is so high that flow (amps) is very low, but it does. You could have shown a breaker. At 3:50 you went astray. The purpose of utility grounds and grounding electrodes (ground rod can be one) is for the dissipation of lightning on or near the electrical system. Please remember that electrical systems prior to the 1940’s had no ground rods connected and no equipment grounds. Remember the lightning rods on the tops of the houses and or barns? I just watched another of your videos and you correctly explain why electricity does not flow to earth comment. It flows through, not to! Got it!
