A Certain Capacitor Has a Capacitance of 5 $\mu$ FAfter It Is Charged to 5

question 38

Multiple Choice

A certain capacitor has a capacitance of 5.0 $\mu$ F.After it is charged to 5 $\mu$ C and isolated, the plates are brought closer together so its capacitance becomes 10 $\mu$ F.The work done by the agent is about:

• A)"0 J"
• B)"1.25 * 10^-6 J"
• C)"-1.25 * 10^-6 J"
• D)"8.3 * 10^-7 J"
• E)"-8.3 *10^-7 J"

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