Capacitor energy problem?

  • Thread starter kkingkong
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  • #1
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Capacitor energy problem??

Homework Statement



A capacitor in this device is charged to 6417.0 V and stores 208.0 J of energy. What is its capacitance?

Homework Equations



i know the equation but dnt know how to use it . . C=(kEoA)/d

The Attempt at a Solution



I don't know how to solve this question. i don't even know how to start. please help
 

Answers and Replies

  • #2
lewando
Homework Helper
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Try this equation: Energy = (Capacitance*Voltage2)/2
 

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