A parallel plate air filled capacitor having an area of40cm 2 and plate spacing

Question

A parallel plate air filled capacitor having an area of40cm2 and plate spacing 1.0mm is charged to a potentialdifference of 600V. Find (a) the capacitance (b) the magnitude ofthe charge on each plate (c) the stored energy (d) the electricfield between the plates (e) the energy density between theplates. Please if you have any help my homework is due on a few hoursand I need assistance fast...Thanks so much!! A parallel plate air filled capacitor having an area of40cm2 and plate spacing 1.0mm is charged to a potentialdifference of 600V. Find (a) the capacitance (b) the magnitude ofthe charge on each plate (c) the stored energy (d) the electricfield between the plates (e) the energy density between theplates. Please if you have any help my homework is due on a few hoursand I need assistance fast...Thanks so much!!

Explanation / Answer

Area A = 40 cm ^ 2= 40 * 10 ^ -4 m^ 2

Separation d= 1 * 10 ^ -3 m

Potential difference V = 600 V

(a). Capacitance C = A / d

Where   = permittivity of free space = 8.85 * 10^ -12 C ^ 2/ N m^ 2

                            C = 3.54 * 10 ^ -11 F

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