The plates of a paraller-plate capacitor are made of circular discs of radii` 5.0`cm each .If the separation between the plates is `1.0`mm,What is the capacitance?

Explanation

Area of the plate
`A = pie r^(2) = pie xx (5 xx 10^(-2))^(2)`
`d = 1.0 xx 10^(-3) m `
`C = eplision_0 A / d`
`= 8.8 xx 10^(-12) xx 3.14 xx 25 xx 10^(-4) / 10^(-3)`
`= 695 xx 10 ^(-5) mu F`