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Beer bottle capacitors? Answered

What is the average capacitance of a salt water beer bottle capacitor?

2 Replies

frollardBest Answer (author)2011-03-22

Extremely low, in the ones to tens of nano-farads. Conversely they're extremely cheap and high-voltage safe.

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steveastrouk (author)2011-03-22

You can calculate it. Work out the area of the plates, work out the gap between them, find a relative permittivity for soda glass (meh, 4-ish) and

C= 8.8.×10−12 x 4 x Area/gap (watch your dimensions)


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