February 20, 2017

Homework Help: Physics

Posted by Erin on Thursday, February 4, 2010 at 5:36pm.

When an air capacitor with a capacitance of 300 nF (1 {\rm nF} = 10^{-9}\;{\rm F}) is connected to a power supply, the energy stored in the capacitor is 1.95×10−5 J. While the capacitor is kept connected to the power supply, a slab of dielectric is inserted that completely fills the space between the plates. This increases the stored energy by 2.74×10−5 J.

What is the potential difference between the capacitor plates?

What is the dielectric constant of the slab?

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