Types of Resistive Sensors, Construction, Working & Applications. What Sensor actually means? what is a Transducer? Working of Resistive Transducer. Potentiometers. What is a Potentiometer? How does a Potentiometer work. Types of Potentiometers. Rotary Potentiometer. Linear Potentiometer. Applications of Potentiometers. Strain Gauges. Working principle of a strain gauge