Circuit Diagram Potentiometer. Sometimes youll see a potentiometer in a circuit diagram connected like this. In practical use pin 3 is generally grounded as the data input terminal.
The above figure shows the circuit diagram for potentiometer calibration. Also designate which way the wiper should be moved to make the bulb glow brighter. Resistor a bundle of resistance is one of the commonly used components in an electric circuit.
Resistor a bundle of resistance is one of the commonly used components in an electric circuit.
According to ohms law v ir where i is current r is total resistance and v is voltage. The middle and bottom pin are connected. Now r ρla and v i pla where ρ is resistivity and a is the cross sectional area with and a constant i is also constant for a rheostat. The potentiometer can work as a rheostat variable resistor or as a voltage divider.