Answered: 24) An oil drop of mass 4.95 x 10-15 kg…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter18: Electric Charge And Electric Field

Section: Chapter Questions

Problem 20PE: (a) Common transparent tape becomes charged when pulled from a dispenser. If one piece is placed...

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24) An oil drop of mass 4.95 x 10^-15 kg is balanced between two large, horizontal parallel plates 2cm apart, maintained at a potential difference of 420 V. The upper plate is positive.

Calculate a) the charge on the drop, both in (i) coulombs and (ii) as a multiple of the elementary charge,

b) and state whether there is an excess or deficit of electrons.

Ensure that you have a clearly labelled diagram

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