# Why doesnt a capacitor discharge when you ground one end?

I have grounded one end of my capacitor after charging it but the voltage drops at a steady pace not as if it has lost charge. Is this because the opposing charges on the opposite plate are keeping the charges in place? When both plates are connected we have a voltage drop and V=ED and F=EQ but when one plate is grounded and the other isnt we do not have a voltage drop, why is that?

• Because it is still an open circuit. Commented Aug 20, 2020 at 3:12

I believe you were correct, the charges on the other plate are attracting the charges on the grounded plate keeping them from going to ground. $$F=q\cdot q/r^2$$, the capacitor has almost no distance separation between the 2 plates so $$r$$ is very small, so the charges on either end hold the opposite charges in place. I would be curious to know if the voltage drops by a little when one side is grounded or if grounding the positive vs the negative (or vise versa) side makes the voltage dissipate any faster.