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Topics - benet

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1
Beginners / is resistance calculated by the output or input?
« on: May 21, 2021, 01:17:50 AM »
When trying to find the resistance of a Tesla coil circuit using ohms law should you be measuring by the input volts in amps or the output volts in amps?  I am trying to calculate the impedance of a circuit and to do that I need to know the resistance. But none of the sources I found specify whether it's going off of the input or the output, which is important to clarify when working with a circuit like a Tesla coil which changes the amps to Volt ratio using Transformers.

2
Beginners / correct coupling calculation?
« on: May 12, 2021, 12:39:01 AM »
How do you calculate the correct coupling Between the primary and secondary coils for a solid state tesla coil?

3
Beginners / transformer question
« on: May 11, 2021, 02:13:22 AM »
I've heard around a lot that spark length he's based off of wattage. But if that is true Why does it matter what transformer is used? Because a transformer just changes the voltage to amperage ratio it never actually changes the wattage. I feel like I'm missing something pretty major here.

4
Beginners / Secondary Resonant Circuit Size
« on: April 13, 2021, 11:52:24 PM »
I'm trying to build a mini Tesla coil, but I have run into a problem in the design phase. Throughout anywhere I looked I haven't been able to find the proper size for the secondary resonant circuit. I understand that it needs to have the same resonant frequency as the primary resonant circuit but that only has bearing on the ratio between the capacitor and inductor. The only lead so to speak that I have is that the secondary in primary coils work as a transformer but again nothing I've found says to what degree. I have to imagine that there is a point where the secondary coil is too big to work with the rest of the circuit, but I have not been able to figure out what that size is. This seems like a relatively basic question but for the life of me I have not been able to figure it out. So is anyone else knows what I'm missing here that would be greatly appreciated, as this is the last thing I need to finish my design. Thank you.

5
Beginners / how do i calculate inductance
« on: August 25, 2020, 12:23:15 AM »
Hi i am an aspiring engineer trying to learn on my own. Although while researching i have not been abel to find an equation to calculate inductance of a coil as well as a spiral. dose anyone hear know of such a calculation or a good resource where i could find one. Thank you.

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