Two parallel plates, each of area 5.00 cm 2 , are separated by 2.00 mm with puri

Question

Two parallel plates, each of area 5.00 cm2, are separated by 2.00 mm with purified nonconducting water between them. A voltage of 7.00 V is applied between the plates. Calculate the following. (a) the magnitude of the electric field between the plates
N/C
(b) the charge stored on each plate
nC
(c) the charge stored on each plate if the water is removed and replaced with air
nC

(a) the magnitude of the electric field between the plates
N/C
(b) the charge stored on each plate
nC
(c) the charge stored on each plate if the water is removed and replaced with air
nC

Explanation / Answer

a) E = V/d = 7/2.0E-3=3500

b) Q = CV =80.4*8.85E-12*5.0E-4*7/2.0E-3=1.245 nC

c) Q= 8.85E-12*5.0E-4*7/2.0E-3=0.0155 nC

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