How to apply AC field between two microelctrodes

vipin pawar

hi everyone

i m new to comsol .i m using comsol 4.2 and want to simulate a model of electric field in between two microelectrodes . In DC voltage it woks fine. but when i apply sine signal in potential
5sin(2*pi*f*t) it gave me negative potential. plz help me . if anybody want to look into my model i can share it.

thanx in advance.

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vipin pawar	How to apply AC field between two microelctrodes hi everyone i m new to comsol .i m using comsol 4.2 and want to simulate a model of electric field in between two microelectrodes . In DC voltage it woks fine. but when i apply sine signal in potential 5sin(2pif*t) it gave me negative potential. plz help me . if anybody want to look into my model i can share it. thanx in advance.