Problem 2 â€“ The plates of a parallel-plate capacitor are separated by a distance d =...

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Physics

Problem 2 â€“ The plates of a parallel-plate capacitor areseparated by a distance d = 0.2 m. There is vacuum between theplates. The voltage difference between the plates is 150 V. Thecapacitance of the plates is 3 Î¼F.
a) (6 pts) Find the magnitude of the electric field between theplates (ignoring edge effects).
b) (12 pts) An alpha particle, which is doubly ionized helium,He2+ (charge = 2e where e is the elementary charge, mass = 4.7 Ã—10-27 kg) is released from rest at the positively charged plate.Find the speed of the alpha particle as it hits the negativelycharged plate.
c) (6 pts) Find the magnitude of the total charge on one of theplates of the capacitor.
d) (6 pts) Find the total energy stored in the capacitor.

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4.3 Ratings (767 Votes)

Part A Electric field between the plates of capacitor is given by E Vd Given that V Potential difference 150 V d separation distance between plates d 02 m See Answer

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