[WEBINAR] The New Normal: Dealing with the Reality of an Unsecure World

Potentiometer (Pot)

Definition - What does Potentiometer (Pot) mean?

A potentiometer is a type of resistor featuring variable and adjustable resistance controlled via a sliding or rotating contact. In order to regulate resistance, the potentiometer acts as a voltage divider, lowering or increasing the voltage output by controlling the resistance value. It is usually used to control electronic devices such as the knob that controls volume and other functions in an audio/video equipment.

Techopedia explains Potentiometer (Pot)

A potentiometer is essentially a manually adjustable resistor that has three terminals. It is also an electro-mechanical circuit since it has moving parts and electronic components. The slider determines the resistance of the device, which, by principles of electricity, also varies the resultant voltage moving out of the device.

As the slider moves up or down (or rotates around) the resistance element, the resistance increases and decreases proportionately with it, and considering the simple formula of voltage = current × resistance, it can be surmised that, with a constant current flow, changing the resistance in the potentiometer also changes the voltage output.

There are many kinds of potentiometers, the most common of which is the rotary type, which is also available in a variety of flavors, depending on the precision or accuracy of the required voltage or resistance for the application. These are often found in volume control knobs of various electrical audio devices. There are also slide-type potentiometers, which are commonly used in audio equipment as slide controls.

Techopedia Deals

Connect with us

Techopedia on Linkedin
Techopedia on Linkedin
"Techopedia" on Twitter

Sign up for Techopedia's Free Newsletter!

Email Newsletter

Join thousands of others with our weekly newsletter

Free Whitepaper: The Path to Hybrid Cloud
Free Whitepaper: The Path to Hybrid Cloud:
The Path to Hybrid Cloud: Intelligent Bursting To Amazon Web Services & Microsoft Azure
Free E-Book: Public Cloud Guide
Free E-Book: Public Cloud Guide:
This white paper is for leaders of Operations, Engineering, or Infrastructure teams who are creating or executing an IT roadmap.
Free Tool: Virtual Health Monitor
Free Tool: Virtual Health Monitor:
Virtual Health Monitor is a free virtualization monitoring and reporting tool for VMware, Hyper-V, RHEV, and XenServer environments.
Free 30 Day Trial – Turbonomic
Free 30 Day Trial – Turbonomic:
Turbonomic delivers an autonomic platform where virtual and cloud environments self-manage in real-time to assure application performance.