A parallel plate has a capacitance of 18µF and a plate separation of 0.025mm. The charge on the capacitor is 0.60µC. a) How much energy is stored in the Electric field? b) If a proton is released from rest at the positive plate, how fast is it moving when it hits the negative plate?

University Physics Volume 2
18th Edition
ISBN:9781938168161
Author:OpenStax
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Chapter8: Capacitance
Section: Chapter Questions
Problem 63P: A parallel-plate capacitor has square plates that are 8.00 cm on each side and 3.80 mm apart. The...
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A parallel plate has a capacitance of 18µF and a plate separation of 0.025mm. The charge on the capacitor is 0.60µC.

a) How much energy is stored in the Electric field?

b) If a proton is released from rest at the positive plate, how fast is it moving when it hits the negative plate?

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