The Plates of a Parallel Plate Capacitor Each Have an Area

question 53

Multiple Choice

The plates of a parallel plate capacitor each have an area of 0.40 m² and are separated by a distance of 0.02 m. They are charged until the potential difference between the plates is 3000 V. The charged capacitor is then isolated.
-How much work is required to move a -4.0 $\mu$ C charge from the negative plate to the positive plate of this system?

• A)-1.2 × 10^-2 J
• B)+1.2 × 10^-2 J
• C)-2.4 × 10^-2 J
• D)+2.4 × 10^-2 J
• E)-5.4 × 10^-2 J

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