Potentiometers find their most sophisticated application as voltage dividers, where shaft position determines a specific voltage division ratio. The main component within the pot is a resistor, illustrated between terminals A and B, above. There is a third terminal, C, that can travel along the resistance. The potentiometer is a handy little component that you really should know how to use.
Track My Order. A potentiometer is a handy little component often used to control the volume of music equipment, brightness of a light, and more. Learn how!. A pot is a manually adjustable variable resistor with three terminals.
A potentiometer, or "pot" for short, is also known as a variable resistor. If the wiring is reversed (wires connected to the left and middle pin instead of right and middle) the pot is still linear but the knob positions of 0Ohm and 10kOhms. Track My Order.
At some point in an electronics project you might find yourself needing a variable resistor. Learning Objectives. Rheostat use; Wiring a potentiometer as a rheostat; Simple motor speed control; Use of voltmeter over ammeter to verify a continuous. Last commit 10 Mar by Jonathon Deriso.
Potentiometers, more commonly known simply as "pots," are a type of electrical component called a variable resistor. Wiring a potentiometer to a fan is a simple way to control the speed of the fan. This method, however, only works safely with a direct-current (DC) fan, and not an alternating-current (AC) fan. Calculate the resistance of the DC motor using the ohms law formula: resistance (R.
If you hook up a potentiometer so that you connect the input source to one lead terminal and the output to the other lead terminal while disregarding the wiper.
Using the third leg turns the rheostat into a potentiometer. The whole thing acts as a voltage divider, with the moving wiper varying the ratio.