In series circuits, the current is the same through each component. The potential difference of the power supply is shared between the components. A parallel circuit showing two bulbs, a switch ...

It turns out that if you have a refrigerator, electric kettle, toaster, and hair dryer humming away, they will eventually explode in frustration.

Two lamps connected in series with an open switch and a cell ... voltage and if one bulb breaks the others remain on. In parallel circuits, the voltage is the same across each branch and is ...