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A parallel plate capacitor with air between its plates is charged to 92.71 V and then...

A parallel plate capacitor with air between its plates is charged to 92.71 V and then disconnected from the battery. When an unknown dielectric material is placed between the plates, the voltage across the capacitor drops to 23.552 V. What is the dielectric constant of the unknown material? Assume that the material fills the space between the plates completely.

Round your answer to 2 decimal places.

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