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- What is an electrode? - Electrical Engineering Stack Exchange
It uses two electrodes to detect the presence of water Electrostimulation therapy uses electrodes (often with adhesive) A Van de Graaff generator is an electrode A ground rod is an electrode (as is the cold water pipe and building steel) It could be argued that an antenna is an electrode (although no one calls them that)
- Why cyclic voltammetry requires three electrodes?
Normally, you want the applied potential difference between working and reference electrode not to change When you use two electrode setup, as chemical reaction occurs, there is some current (faradaic) passing through reference electrode which when combined with reference electrode resistance changes the potential at which reference electrode stays, thus changing the potential differ
- amplifier - How does a driven right leg work? - Electrical Engineering . . .
Connecting the electrode directly to the common is undesirable for two reasons 1) If the circuit is not isolated, dangerous currents could flow through the third electrode 2) A poor electrode contact may present up to 100 k \$\Omega\$ of resistance between the patient and the common The most common and effective use of the third electrode is
- Why does only the tip of the electrode melt when arc welding?
The electrode is thinner though, and I don't understand why the whole electrode doesn't melt if the current that flows through it is high enough to melt the tip of the electrode I thought about it and my guess is that it has something to do with the contact resistance at the tip of the electrode being different from that of the electrode's
- How do I connect a female EEG electrode to a breadboard?
The DIN 42802 connector itself isn't easily obtained, but you can buy "EEG Electrode Extension Wires" with a plug on one end and a socket on the other Just cut off the socket female end, strip and tin the wire end, and insert it in your breadboard You could crimp on a Dupont connector instead if you have the contacts and tooling
- Does electrical current flow from positive to negative or negative to . . .
The answers you were given and what you were taught in school are all correct When electric current was first discovered people didn't know which way to choose and they assumed that it flows from positive to negative
- Why is the Anode positive if Anions are negative. . . ?
It is the electrode through which electric current flows into a polarized electrical device For a discharging battery, this is the negative lead This is how I connected anode anion and cathode cation during chemistry class when we were discussing batteries
- Current flow in batteries? - Electrical Engineering Stack Exchange
When you add a wire between the ends of the batteries, electrons can pass through the wire, driven by the voltage This reduces the electrostatic force, so ions can pass through the electrolyte As the battery is discharged, ions move from one electrode to the other, and the chemical reaction proceeds until one of the electrodes is used up
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