When an object such as a plastic comb is chargedby rubbing it with a cloth, the net charge is typicallya few microcoulombs.Part AIf that charge is 3.3 µC , by what percentage does the mass of a 40 g comb change during charging?Express your answer using two significant figures.?|Am|%mSubmitRequest Answer

Charge, Q = 3.3×10-6 CMass of comb, M = 0.04 kgCharge of an electron, qe = 1.6×10-19 CMass of an…

Answered: If that charge is 3.3 µC , by what…

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 36PE: Sketch the electric field lines in the vicinity of two opposite charges, where the negative charge...

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When an object such as a plastic comb is charged
by rubbing it with a cloth, the net charge is typically
a few microcoulombs.
Part A
If that charge is 3.3 µC , by what percentage does the mass of a 40 g comb change during charging?
Express your answer using two significant figures.
?
|Am|
%
m
Submit
Request Answer

Expert Solution

Step 1

$C h a r g e, Q = 3.3 \times 10^{- 6} C M a s s o f c o m b, M = 0.04 k g C h a r g e o f a n e l e c t r o n, q_{e} = 1.6 \times 10^{- 19} C M a s s o f a n e l e c t r o n, m_{e} = 9.1 \times 10^{- 31} k g$

The number of electrons will be determined by dividing the total charge with the electron's charge

$n = \frac{Q}{q_{e}} n = \frac{3.3 \times 10^{- 6}}{1.6 \times 10^{- 19}} n = 2.06 \times 10^{13}$

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