Air isn't a perfect electric insulator, but it has a very high resistivity. Dry air has a resistivity of approximately 3*10^13 Ω*m. A capacitor has square plates 10cm on a side separated by 1.2 mm of dry air.
If the capacitor is charged to 250 V , what fraction of the charge will flow across the air gap in 1 minute? Make the approximation that the potential difference doesn't change as the charge flows.
△Q/Q = ... % Please help... :)
If the capacitor is charged to 250 V , what fraction of the charge will flow across the air gap in 1 minute? Make the approximation that the potential difference doesn't change as the charge flows.
△Q/Q = ... % Please help... :)
-
R = ρ L/A
I = V/R
Q = It
You should know what all the symbols stand for.
If not, it is time to study.
I = V/R
Q = It
You should know what all the symbols stand for.
If not, it is time to study.