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A parallel-plate capacitor has a plate separation of 1.5 mm and is
charged to 900 V.
1) If an electron leaves the negative plate, starting from rest, how
fast is it going when it hits the positive plate? (Express your
answer to two significant figures.)
×10¹ km/s

Expert Solution

Introduction:

We are given distance between plates of parallel plate capacitor. We are also given potential difference between plates. We first find electric field between plates and hence electric force. We then find acceleration for electron. We then use 2nd equation of motion to find final velocity at other plate.

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