In domestic circuits, the appliances are generally connected in
In a house, there are many electrical appliances that have to run independently of each other. If one appliance is turned on or off it should not affect the other appliances. This is not possible if all the appliances were connected in a series arrangement as there would be one switch that either switches all of them on or off.
When appliances are connected in a parallel arrangement, each of them can be put on and off independently. This is a feature that is essential in a house's wiring.