Air becomes a conductor if the electric field across it exceeds 3.0× 106V/m. What is the maximum charge that can be accumulated on an air-filled capacitor with a 0.2 mm plate separation and a plate area equal to the area of the world's largest painting (6.7× 103m2)?
The largest apple pie ever made was rectangular in shape and had an area of 7.0 m× 12.0 m. Consider a parallel-plate capacitor with this area. Assume that the capacitor is filled with air and the distance between the plates is 1.0 mm?
a. What is the capacitance of the capacitor?
b. What potential difference would have to be placed across the capacitor for it to store 1.0 J of electrical potential energy?