I need to make a plate capacitor of 7nF 50KV. I will use aluminum foil and 1.5mm thick polycarbonite insulator. The area I came up with is 3.5 sqaure meters. Is that right?
- posted
13 years ago
Check my capacitor calculation
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- posted
13 years ago
Check out the link below for the epsilon value
Formula for capacitance:
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- posted
13 years ago
I am certain it is not.
7nf is close to what you have with two pieces of wire twisted together for about 5 inches.John Ferrell W8CCW
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- posted
13 years ago
I think you are talking about picofarads with the twisted wire
7 Nanofarad is 7000 picofarad.- Vote on answer
- posted
13 years ago
sinebar Inscribed thus:
Do you mean 7 nanofarad or 7000 picofarad ?
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Best Regards:
Baron.
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13 years ago
That must be some mighty thin insulation on that wire.
-- You can't fix stupid. You can't even put a band-aid on it, because it's Teflon coated.
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- posted
13 years ago
Yes I mean 7 nanofarad.
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- posted
13 years ago
A = C * d / (k * e0) = 7E-9 * 1.5E-3/(2.9 * 8.854E-12)
= ??
.. maybe you put k in the numerator?
Best regards, Spehro Pefhany
-- "it's the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com
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- posted
13 years ago
My error! You are correct... John Ferrell W8CCW