Question: A 2.00-nF parallel-plate capacitor is charged to an initial potential difference Vi = 100 V and then isolated. The dielectric material between the plates is

A 2.00-nF parallel-plate capacitor is charged to an initial potential difference ∆Vi = 100 V and then isolated. The dielectric material between the plates is mica, with a dielectric constant of 5.00.
(a) How much work is required to withdraw the mica sheet?
(b) What is the potential difference of the capacitor after the mica is withdrawn?

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a b We use Equation 2611 to find the potential energy of the capacitor As we will see the potential ... View full answer

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