Potential dividers

A potential divider is used to split the voltage of a circuit.

• widely used for setting and adjusting the circuit, eg, in radios, games and toys.
• you may find you need 6 volts for a circuit but you only have a 9 volt battery. Therefore you would use a potential divider.
• add both resistors together
• divide that number by the value of the two resistors
• multiply that value by the largest resistor