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A capacitor filled by dielectric slab (k=4.5) is connected to a 12.0V battery and charged up....

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Physics

A capacitor filled by dielectric slab (k=4.5) is connected to a12.0V battery and charged up. The capacitor is then disconnectedfrom the battery and the slab is removed.

a) Find the amount by which the potential difference across theplates changes.

b) Find the difference between the new stored energy and theoriginal amount and specify whether this energy difference is anincrease or decrease.

Answer & Explanation Solved by verified expert
3.7 Ratings (453 Votes)
A capacitor filled by dielectric slab k45 is connected to a120V battery and charged up The capacitor is then disconnectedfrom the battery and the slab is removedk 45V 12 VaCapacitance C of the capacitor with a dielectric slab is givenbyC QV k A dQ k AV dwhere Q is the charge on the    See Answer
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