# Add variable electric potential in Comsol [closed]

I have a model in Comsol where some part has a fixed potential (-800v) while the other is grounded.

Does anyone have an idea on how to change the potential alternately from +800v to -800v with a waveform function?

$$V = V_0 \sin(\omega t)$$

Does this equation satisfy this query with a frequency given as 2.81 MHz?

• Welcome to SciComp.Exchange. As it is right now, your question reads as asking about how to do a specific task in specific software. If that's the case I suggest that you ask this in Comsol Q&A. If not, if you are interested in boundary conditions for this problem I suggest that you rephrase it. May 8 at 17:36
• Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking.
– Community Bot
May 9 at 13:48