What is an electrode? - Electrical Engineering Stack Exchange
May 4, 2015 · According to wiki, an electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit (e.g. a semiconductor, an electrolyte or a vacuum). Examples of …
Why cyclic voltammetry requires three electrodes?
Sep 10, 2015 · Why do you need both a reference electrode and a counter electrode? Why measuring the current between the reference electrode and the working electrode is not …
Why does only the tip of the electrode melt when arc welding?
Apr 19, 2018 · The negative electrode is connected to the torch. The positive electrode is connected to the work piece to be welded. An arc is created by a circuit in the power supply …
NE-77 neon glow bulb trigger electrode as signal source?
Aug 11, 2024 · The NE-77 neon glow lamp is like the NE-2 externally but has a third electrode intermediate "trigger" electrode between the power electrodes. The trigger …
What if the ground in EEG/EMG has high impedance
Jul 23, 2025 · Draw a schematic, or post a diagram. Be aware that not everybody is aware of the technicalities or jargon of EEG measurement. Show between which pairs of electrodes you are …
sensor - How to do water detection with a single electrode ...
Feb 9, 2024 · Is the electrode imposed? If not, you can easily have a single electrode in a "mechanical" sens (ie a single stick) but with 2 distinct electrodes from an electric poitn of …
batteries - "Shooting" 9V battery; what causes it? - Electrical ...
Apr 7, 2025 · Alkaline batteries are the negative electrode, and carbon-zinc batteries are the positive electrode. Therefore, when we take the battery, do not point the positive and negative …
Are electrode based, water level monitoring systems safe?
I want to install a pump control with water level monitoring system. I've seen all kind of sensors, ultrasonic, infrared, mechanical (Based in pressure switch's / float valves), etc. One of the most
How does a driven right leg work? - Electrical Engineering Stack …
Nov 15, 2021 · @Jtl Press a 1.5V battery negative terminal against the leg (wet it with saliva or electrode gel, to make a good electrical contact), and using a high impedance digital voltmeter …
operational amplifier - What is Ground Electrode in EMG?
Aug 23, 2023 · Using a ground electrode is one means of ensuring that the front-end supplies end up where they need to be in absolute voltage terms relative to the bio-potentials on the …