And to complete the circuit you need to connect it back to the other side of the cell. Ah! There we go! You can put all kinds of other components in the circuit, to be powered by the cell.

is a miniaturized electronic circuit consisting of transistors, resistors, capacitors, and other components fabricated onto a single piece of semiconducting material, typically silicon. ICs have ...

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 circuit is equal to the supply voltage, \({V_s}\).