1 answer

The plates of a parallel-plate capacitor each have an area of 0.1 m2 and are separated...

Question:

The plates of a parallel-plate capacitor each have an area of 0.1 m2 and are separated by a 1 mm thick layer of glass. The capacitor is connected to a 11 V battery. (The dielectric constant for glass is 5.)

a) Find the capacitance.

b) Find the charge stored.

c) Find the electric field between the plates.


Answers

A= 0.1m2

d= 1*10-3m

V=11v

k=5

part a

c=K\epsilon_{0}A/d=5*8.85 × 10-12*0.1/1*10-3=4.425*10-9 F=4.425nF

part b

Q=CV=4.425*10-9*11=4.8675*10-8C

E =V/d=11/0.001=11*103V/m

.

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