Try 1 V or whatever at one plate and ground at the other plate, then add a frequency domain study.
Frequency domain represents AC voltage excitation in this case.
Hi Eric,
I saw your replay in the Comsol forum and ask help from you. I want to add DC voltage and AC voltage on one capacitor plate, in frequency domain and I will analysis the frequency response. How should I add the Vac?how to solve the 't' problem? Please help me !
