A 2.0-nF parallel plate capacitor with a sheet of mylar (k = 3.1) filling the sp

Question

A 2.0-nF parallel plate capacitor with a sheet of mylar (k = 3.1) filling the space between the plates is charged to a potential difference of 90 V and is then disconnected. What is the potential difference between the plates of the capacitor once the mylar is completely removed? A. 5.1 A 2.0-nF parallel plate capacitor with a sheet of mylar (k = 3.1) filling the space between the plates is charged to a potential difference of 90 V and is then disconnected. What is the potential difference between the plates of the capacitor once the mylar is completely removed? A. 5.1 A 2.0-nF parallel plate capacitor with a sheet of mylar (k = 3.1) filling the space between the plates is charged to a potential difference of 90 V and is then disconnected. What is the potential difference between the plates of the capacitor once the mylar is completely removed?

Explanation / Answer

Q = 90*3.1*2*10^-9

potential difference = Q/2*10^-9 = 2800

therefor D

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