Circuits

Physics has shown that when wired in parallel, potential difference does not change among resistors. This would be the ideal way to wire a house because a large potential difference will not be needed. Rather than be shared among resistors in series, resistors in parallel will have the same potential difference as the power source. If potential energy is high, power will increase(P=IV). Parallel is also ideal for wiring a house because if something like a light bulb burns out, the rest of the circuit will continue to work. In series, the entire circuit would not work because the circuit is broken at the bulb. The best example of this are christmas lights. If one bulb breaks, you would have to check each bulb to see which one broke if it is wired in series. Finding out which bulb burnt out would be a pain.