A Parallel-Plate Capacitor Has a Potential Energy Due to Its

question 37

Multiple Choice

A parallel-plate capacitor has a potential energy due to its charge of 6.00 mJ.It is accidentally filled with water in such a way as not to discharge its plates.How much energy does it continue to store after it is filled? (The dielectric constant for water is 78 and for air is 1.0006. )

• A)0.077 mJ
• B)468 mJ
• C)0.04 mJ
• D)6.00 mJ

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