A voltage divider is a circuit that is utilized to generate a part of the input voltage as an output. It is typically built using two resistors and a voltage source where the resistors are connected in series. The voltage is then applied across these two resistors. It is also known as a potential divider as it converts a high voltage to a low value. It is a sequence of resistors or capacitors that may be tapped at any point in the circuit to create a precise proportion of the voltage applied between its ends.