Answer to Question #26212 in Electricity and Magnetism for jennifer

Question

An air-filled capacitor consists of two parallel plates,
each with an area of 7.60 cm2
, separated by a distance of
1.80 mm. A 20.0-V potential difference is applied to these
plates. Calculate (a) the electric field between the plates,
(b) the surface charge density, (c) the capacitance, and
(d) the charge on each plate.