When would you use a parallel circuit? How does it work?

Answer 1

Anytime you have two things plugged into the same power supply, that's a parallel circuit. If two circuits that are the same electrical resistance are wired in parallel, they will conduct twice as much current.

A parallel circuit is different than a series circuit, which is like those damn Christmas tree lights that are wired in a line. If one goes out, they ALL go out. Parallel circuits don't have this problem.

There's a lot more to it than that, really. But that's just the basic idea.

Oh yeah - how to use it: plug it in and turn it on.

Answer 2

Most of the wiring cicuits in houses and offices are parallel, since different appliances are connected in parallel to the same supply voltage. Try connecting two bulbs in series to a battery and see how the light goes down in each of them (they may not glow at all). Now connect each of them directly. That is a parallel circuit.

Answer 3

Typical Eg:

In your house
lights, fans, ac, fridge everything is connected parallel to power source

It works by making sure same voltage is maintained in each of the individual circuits. The currents and thus the power varies
--
George Philip
Elavatta

Answer 4

It depends what you mean. Like hooking things up to a power supply or hooking batteries in parallel, or do you mean electronic circuits? Electronic parallel circuits can be used as oscillators or to block a particular frequency.