An isolated parallel plate capacitor of plate area A = 0.05m2 with a plate separation d = 5 cm has a carge Q = 100µC when the space between the plates are filled with air. (a) What is the capacitance C, of this capacitor? (b) What is the potential difference between the plates? Now a dielectric slab of same area A and thickness b = 1.5 cm is placed between the plates without touching any plate as seen in the figure. The dielectric constant of the slab is given as K = 5.4. (c) What is the new potential difference between the plates?

An isolated parallel plate capacitor of plate area A = 0.05m2 with a plate separation d = 5 cm has a carge Q = 100µC when the space between the plates are filled with air. (a) What is the capacitance C, of this capacitor? (b) What is the potential difference between the plates? Now a dielectric slab of same area A and thickness b = 1.5 cm is placed between the plates without touching any plate as seen in the figure. The dielectric constant of the slab is given as K = 5.4. (c) What is the new potential difference between the plates?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

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Question

An isolated parallel plate capacitor of plate area A =
0.05m² with a plate separation d = 5 cm has a carge
Q = 100µC when the space between the plates are
filled with air.
(a) What is the capacitance C, of this capacitor?
(b) What is the potential difference between the
plates?
Now a dielectric slab of same area A and thickness b =
1.5 cm is placed between the plates without touching
any plate as seen in the figure. The dielectric constant
of the slab is given as K = 5.4.
(c) What is the new potential difference between the
plates?
(d) What is the energy density of the electric field
inside the dielectric slab?
d
slab
(e) How much work was done to place the slab
between the plates by the external agent?

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