☑ Function Of Variable Resistor Wikipedia

Variable resistor is an resistor that can change its resistance manually by rotating a handle or a screw. Pots are used as voltage dividers.

Varistor Wikipedia

Ks0077 78 79 Keyestudio Super Learning Kit For Arduino

Activity Variable Gain Amplifiers Analog Devices Wiki

A voltage controlled resistor vcr is a three terminal active device with one input port and two output ports.

Function of variable resistor wikipedia. The jfet and the mosfet. Asked in electronics engineering electrical engineering. Two types of fets are often used.

In other words a resistor which current value is directly proportional to the applied voltage is known as linear resistors. A photoresistor or light dependent resistor ldr or photo conductive cell is a light controlled variable resistor. The name varistor is a portmanteau of varying resistor.

The term is only used for non ohmic varying resistors. The term is only used for non ohmic varying resistors. When it has two terminals it acts as a variable resistor which is known as a rheostat.

One of the advantages of the potential divider compared to a variable resistor in series with the source is that while variable resistors have a maximum resistance where some current will always flow dividers are able to vary the output voltage from maximum v s to ground zero volts as the wiper moves from one end of the potentiometer to the other. Variable resistors such as the potentiometer and the rheostat have ohmic characteristics. The resistance of a photoresistor decreases with increasing incident light intensity.

Those resistors which values change with the applied voltage and temperature are called linear resistors. A resistor network that is a combination of parallel and series connections can be broken up into smaller parts that are either one or the other. In other words it exhibits photoconductivity.

Generally there are two types of resistors which have linear properties. For example a 10 ohm resistor connected in parallel with a 5 ohm resistor and a 15 ohm resistor produces 1 110 15 115 ohms of resistance or 30 11 2727 ohms. It consists of a bare fixed resistance conductor with a terminal at each end plus a conductive wiper arm that moves along the fixed resistor to provide different resistance values.

The input port voltage controls the value of the resistor between the output ports. Vcrs are most often built with field effect transistors fets. A variable resistor is an electromechanical transducer that generally works by sliding a contact wiper over a resistive element.

A photoresistor can be applied in light sensitive detector circuits. A variable resistor is called a potentiometer or pot for short. A variable resistor is used because a potential divider with 3 terminals is known as a potentiometer.

Chapter 7 Diode Application Topics Analog Devices Wiki