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How does electrostatic force in the direction normal to the plate in a parallel plate capacitor...

How does electrostatic force in the direction normal to the plate in a parallel plate capacitor “scale” if the electric field is constant?

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Answer #1

Let capacitance of capacitor=C

Let constant electric field=E

Let force in parallel plate capacitor=F

Let displacement of plate=d

Work done=Energy stored in capacitor

F*d=0.5 C (E*d)2

C and E is constant

So, F is directly proportional to d

So, the scale is linear

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