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The part of a voltaic battery by which the electric current leaves substances through which it passes, or the surface at which the electric current passes out of the electrolyte; the negative pole; -- opposed to anode.
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What is meaning of perforated cathode?
The. Cathode plate consists of small holes known as perforated cathode plate
What is the full meaning of CRT in computer?
A "CRT" is a cathode ray tube. An old style computer monitor (not computer).
Why does the cathode gain in mass during the purification of copper by electrolysis?
Because the cathode is where reduction takes place, meaning the it gains electrons. When it gains electrons, it attracts the copper cation (Cu^2+) and as the copper cation reaches the cathode, it picks up the electrons from the cathode, and is deposited as solid copper (Cu). This results in the cathode gaining mass over time.
Why do electrodes get their names anode and cathode?
Electrodes are named anode and cathode based on their function in an electrochemical cell. The anode is the electrode where oxidation occurs, meaning it loses electrons, while the cathode is where reduction takes place, gaining electrons. These terms derive from the Greek words "anodos," meaning "way up," and "kathodos," meaning "way down," reflecting the flow of electric current in the device. In a galvanic cell, the anode is negative and the cathode is positive, while in an electrolytic cell, the roles are reversed.
What is common cathode?
has common cathode
What is the difference between anode led and cathode led?
A: A LED is a diode and like all diode they have an [anode] meaning positive terminal and a [cathode] negative terminal. Therefore the proper potential must be applied for it to behave like an LED.
Why cathodic ray negative electrode is cathode?
The cathodic ray negative electrode is called the cathode because it is the electrode where reduction occurs during electrochemical reactions. In a cathode, electrons are supplied from the external circuit, allowing positive ions to gain electrons and become neutral atoms. The term "cathode" originates from the Greek word "kathodos," meaning "way down" or "descent," reflecting the flow of electrons toward this electrode. Thus, in cathodic rays, the negative electrode is designated as the cathode based on its role in facilitating electron flow and reduction.
Where does reduction occur in an electrochemical cell?
The cathode.
Difference between direct and indirect cathode ray?
In a directly heated cathode, the filament is the cathode and emits the electrons. In an indirectly heated cathode, the filament or heater heats a separate metal cathode electrode which emits the electrons.
Is the cathode positive in a battery?
No, the cathode is negative in a battery.
Is the cathode red or black?
The cathode is typically black.
In the cathode ray tube where do the particles originate?
In a cathode ray tube (CRT), the particles, which are electrons, originate at the heated cathode, becoming the so-called cathode rays. The electrons stream off the cathode and rush over to the anode.
