Parallel circuits are used because loads can be operated on their own. Let’s say we are using a series circuit, the lights will get drummer as we add more lights to the circuit. This issue is avoided using a parallel circuit.
The load has the full power of the circuit when using a parallel circuit instead of a series circuit.
Houses are also wired in parallel, as against series, so that the malfunctioning of one piece of equipment does not affect the operation of the other.
The following are some of the components of a house circuit; control switch, meter box, switch lamps, circuit breaker, etc.