How a Cathode Heater Works: A Clear Explanation

AI Thread Summary
A cathode heater operates by heating a cathode to facilitate thermionic emission, where electrons are released from the heated surface. The discussion highlights the need for clarity in understanding the specific type of cathode heater being referenced, as the term can be vague. Participants emphasize the importance of context when asking about technical concepts. The conversation suggests that a more detailed explanation is necessary to fully grasp the mechanics of cathode heaters. Overall, a clear understanding of thermionic cathodes and their heating process is essential for accurate comprehension.
NJV
Messages
39
Reaction score
0
How does a cathode heater work? Can't seem to find a straightforward explanation anywhere.
 
Science news on Phys.org
NJV said:
How does a cathode heater work? Can't seem to find a straightforward explanation anywhere.

This is very vague! You need to put some context in this. I could easily just say it is a heater that heats a cathode. Would this have answered your question? Or are you actually thinking about thermionic cathodes that work via heating?

See how your question is vague?

Zz.
 

Thread 'Entropy and configurations of microstates'

I was watching a Khan Academy video on entropy called: Reconciling thermodynamic and state definitions of entropy. So in the video it says: Let's say I have a container. And in that container, I have gas particles and they're bouncing around like gas particles tend to do, creating some pressure on the container of a certain volume. And let's say I have n particles. Now, each of these particles could be in x different states. Now, if each of them can be in x different states, how many total...
View full post »
Thread 'Why work is PdV and not (P+dP)dV in an isothermal process?'

Thread 'Why work is PdV and not (P+dP)dV in an isothermal process?'

Let's say we have a cylinder of volume V1 with a frictionless movable piston and some gas trapped inside with pressure P1 and temperature T1. On top of the piston lay some small pebbles that add weight and essentially create the pressure P1. Also the system is inside a reservoir of water that keeps its temperature constant at T1. The system is in equilibrium at V1, P1, T1. Now let's say i put another very small pebble on top of the piston (0,00001kg) and after some seconds the system...
View full post »

Thread 'Condensate rate of water for an air conditioning cooling coil'

I need to calculate the amount of water condensed from a DX cooling coil per hour given the size of the expansion coil (the total condensing surface area), the incoming air temperature, the amount of air flow from the fan, the BTU capacity of the compressor and the incoming air humidity. There are lots of condenser calculators around but they all need the air flow and incoming and outgoing humidity and then give a total volume of condensed water but I need more than that. The size of the...
View full post »

Similar threads

Heat Absorbed by Gas: An Expert Explanation
Replies
2
Views
2K
Max Heat Output of a Frenette Heater
Replies
1
Views
3K
Solar Water Heater: How It Works & Energy Transfers
Replies
3
Views
1K
B Why does hot water rise to the top of a water heater?
2
Replies
66
Views
3K
Heating pad element sizing
Replies
13
Views
139
If My Water Heater Doesn't Work, Is Water Still Safe to Drink (if Cold)?
Replies
19
Views
7K
Determing peak anodic and cathodic currents in quasi-reversible CV?
Replies
0
Views
1K
Chemistry How does this example of electroplating tungsten onto base metal work?
Replies
5
Views
1K
Obtain Cathode Ray Tubes Without X-rays
Replies
9
Views
2K
Aluminum Air fuel cell
Replies
9
Views
2K

Hot Threads

Recent Insights

Back
Top