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Negative Capacitance Value

Question asked by YoonPham on Jul 13, 2018

Hi guys

I  am using the Dielectric Test Fixture 16451B connect with 4263B to measure capacitance value of material.

Some material is conductive which is giving me a "Negative Cp Value " (like -108uF at 100Hz or -6.5uF at 1kHz) when  those sample in Dielectric Fixture. I don't know the right way to explain the negative Cp value . Can you help why it is negative Cp value ?