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
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