Why Does Grounding the Inner Shell Affect Cylindrical Capacitor Capacitance?

AI Thread Summary
The discussion centers on the relationship between the theoretical capacitance of a cylindrical capacitor and the measured capacitance when the inner shell is grounded. It highlights confusion regarding the grounding of the inner shell and the use of an L-C meter for measurement. Participants seek clarification on the grounding concept and its implications for capacitance readings. The theoretical capacitance matches the measured value on the outer shell due to the grounding effect, which influences the electric field distribution. Understanding these principles is crucial for accurate capacitance measurements in cylindrical capacitors.
cscott
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cscott said:
Why is the theoretical capacitance for a cylindrical capacitor (given here http://hyperphysics.phy-astr.gsu.edu/hbase/electric/capcyl.html) equal to the value measured on the outer shell with the inner grounded using a L-C meter?

I'm stuck.

can you describe what you mean? I'm confused why you say the inner is grounded... what do you mean by L-C meter...
 

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