Common questions

What is the middle pin of a potentiometer?

What is the middle pin of a potentiometer?

We call the middle pin the wiper. It is connected somewhere on the strip between the two ends. You can move the point where the wiper connects to the carbon strip by turning the shaft of the potentiometer. When you move the wiper to the left side, the resistance between the middle pin and the left pin decreases.

Does a potentiometer need to be grounded?

It is like two resistors together in series. You don’t need to ground it, but when you do and you have a voltage applied to the other end, then it is the same as having two resistors in series between the voltage and ground – you can change those resistances to change the voltage that you get between them.

What are disadvantages of potentiometer?

Disadvantages of potentiometer

  • It is slow in operation.
  • It has low accuracy.
  • It has limited bandwidth.
  • If you use a linear potentiometer, you should apply a large force to move the sliding contact.
  • There is a possibility of friction and wear due to the sliding of the wiper across the resistive element.

What are the two application of potentiometer?

The potentiometer is used as a voltage divider in the electronic circuit. The potentiometer is used in radio and television (TV) receiver for volume control, tone control and linearity control. The potentiometer is used in medical equipment. It is used in wood processing machine.

What is the configuration of a potentiometer pin?

Potentiometer Pin Configuration Pin No. Pin Name Description 1 Fixed End This end is connected to one end of the 2 Variable End This end is connected to the wiper, to p 3 Fixed End This end is connected to another end of

What is the resistance of a 10K potentiometer?

Available in different resistance values like 500Ω, 1K, 2K, 5K, 10K, 22K, 47K, 50K, 100K, 220K, 470K, 500K, 1 M. Note: Complete Technical Details can be found at the datasheet given at the end of this page. Potentiometers also known as POT, are nothing but variable resistors.

What is the power rating of a potentiometer?

Resistors are also classified based on how much current it can allow; this is called Power (wattage) rating. The higher the power rating the bigger the resistor gets and it can also more current. For potentiometers the power rating is 0.3W and hence can be used only for low current circuits.

What are the terminals of a potentiometer used for?

So the terminals 1 and 2 or terminals 2 and 3 can be used to obtain the variable resistance and the knob can be used to vary the resistance and set the required value.