A parallel plate capacitor is composed of two parallel plates of aluminium foil, each with a...

A parallel plate capacitor is composed of two parallel plates of aluminium foil, each with a surface area of 2.5 m2 that are separated by 2.0 mm The foils are then oppositely charged with 5 mC of charge.

a) what is the electric field between and outside of the capacitor near its middle ?

b) If a dust particle (m = 0.5 ng) picks up 10,000 electrons and finds itself right near the negatively charge plate, what is its KE (in J and eV) after it moves to the positive plate?

c) how long does it take the dust particle to get to the positive plate ?

d) what will its speed be when it gets to the positive plate ?

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The answers are

genius_generous answered 1 year ago

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