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Unformatted text preview: with a plate separation of 1.0 cm. (i) If the plates are square, what is the length of the side of the square? (ii) If the plates are circular, what is its radius? 7. Find the energy stored in a 20pF capacitor when it is charged to 5 C. How much additional energy is required to charge it from 5 to 10 C? 8. An electric field 2 10 4 V exists between the plates of a circular parallel plate capacitor of plate separation 2 mm. (i) What is the voltage across the capacitor? (ii) What is the radius of the plate if the charge on it is 10 c? 9. (i) A 3.0 F capacitor is charged to 100 V. What is the energy of this charged capacitor? (ii) How much additional energy is required to charge the capacitor from 100 to 200 V? 10. What is the capacitance of a pair of circular plates of radius 5.0 cm separated by 3.2 mm mica?...
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 Spring '11
 George
 Physics, Charge, Work

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