The two parallel plates of a capacitor store charge -4.0x10-9 C (plate A) and 4.0x10-9 C...
The two parallel plates of a capacitor store charge -4.0x10-9 C (plate A) and 4.0x10-9 C (plate B). The potential difference between the plates is 100V, and the separation is 2.0mm.
There is no battery connected to the plates. Initially, there is air between the plates with dielectric constant k=1.
a) Find the surface area of the plates.
b) Assume that a dielectric material with k=2.0 is introduced between the plates. Calculate the energy stored.
c) In the situation of part b) what is the electric field (magnitude and direction)
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The two parallel plates of a capacitor store charge
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