1. A 5.80-μF, parallel-plate, air capacitor has a plate separation of 5.00mm and is charged to a potential difference of 400V. What is the energy stored in the capacitor?  A. 14mJ  B. 80mJ  C. 464mJ  D. 92mJ     2. A 5.80-μF, parallel-plate, air capacitor has a plate separation of 5.00mm and is charged to a potential difference of 400V. What is the electric field in the capacitor?  A. 40kV/m  B. 80kV/m  C. 120kV/m  D. 155kV/m

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.