In a parallel circuit, if a lamp breaks or a component is disconnected from one parallel wire, the components on different branches keep working. Unlike a series circuit, the lamps stay bright if ...

The voltmeter is connected in parallel with the component. The supply voltage is shared between components in a series circuit, so the sum of the voltages across all of the components in a series ...

In basic form, here is the difference between wiring two 12-volt batteries in series versus in parallel. The parallel circuit still generates 12 volts but doubles the amperage output.