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Ground (sometimes called neutral or earth) is usually at 0V. Ground acts a reference point for most electronic circuits. It is good practice to connect all ground references to a common point; inversely, it is a very bad practice to leave floating ground points in your circuit. If you are using multiple benchtop instruments simultaneously such as a DC power supply, signal generator, oscilloscope, and digital multimeter, you should create a common ground between all instruments (and your circuit too) to ensure that you get accurate measurements and don’t have strange circuit behavior.
 
Ground (sometimes called neutral or earth) is usually at 0V. Ground acts a reference point for most electronic circuits. It is good practice to connect all ground references to a common point; inversely, it is a very bad practice to leave floating ground points in your circuit. If you are using multiple benchtop instruments simultaneously such as a DC power supply, signal generator, oscilloscope, and digital multimeter, you should create a common ground between all instruments (and your circuit too) to ensure that you get accurate measurements and don’t have strange circuit behavior.
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==Demonstration==
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Set up a breadboard with a 10k potentiometer as a voltage divider using the wiper as the output pin. Connect an LED and a 560 resistor in series to the potentiometer's output pin.
    
==Documentation==
 
==Documentation==

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