1. A parallel plate capacitor has a surface area of A = 33.9 cm2 and a plate sep

Question

1. A parallel plate capacitor has a surface area of A = 33.9 cm2 and a plate separation of d = 14.6 mm. How much charge does the capacitor store, when it is connected to a battery supplying a voltage of V = 10.5 V?

2. How much additional charge flows to the capacitor, when a dielectric material with a relative permittivity of ?r = 5.07 is placed between the plates while the capacitor is kept connected to the battery?

I tried:
C=EA/d
C=8.85x10^-12 x .339m^2 / .0146m = 2.0549e-10

For the second Q=CV?

Explanation / Answer

1) Q = CV = (epsilon*A/d)*V = 2.16*10^-11 C

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