Note: Variations of potential divider are – rheostat, variable resistor, and/or potentiometer.

A Voltage-Divider enables you to obtain any voltage up to the maximum of the supply e. m. f solely by means of changes to resistors values.

• A Voltage Divider finds application when you need a fraction of supply voltage to power a circuit; an example is in resistors array taping in multimeter
• It finds useful applications in transistor circuits to stabilize the operating of a transistor or biasing to determine the operating point.
• Potential Divider simply allow you to tap estimated voltage value from any or combination of resistors and ground potential
• Variable Resistor, Preset/Rheostat, or Potentiometer enables you to derive smooth voltage increment or decrement between supply and ground.

Typical Areas of use of Voltage-Divider:

• Photo Diode: in circuits for Street Lights control
• Variable Resistor: Dimmer Switch; Volume Control; Shower Temperature

You will find out more about Voltage Divider usage in subsequent Posts,

• How to make a Potential Divider
• Practical Rule for a Potential Divider
• Potential Divider Principle
• Potential Divider Biasing a BJT
• Potential Divider with Capacitors