Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 23, Problem 30P
(a)
To determine
The true statement from given condition.
(b)
To determine
The true statement from the following condition.
(c)
To determine
The ratio
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Adopt a strategy of bringing in the charges one by one from infinity,
and situate four electrons at the corners of a square 10.0 nm on a
side.
(a) Explain, using diagrams, the issue of attraction/repulsion & how
the work performed in each step is affected by the sign(s) of the
charge(s).
(b) Calculate the total amount of work required to bring the charges to
this
arrangement.
(c) Use
U =
4TEO
to determine the total potential energy of
rij
the
system
of
four
charges.
(d) Comment on your finding in (c).(1)
(e) Would your comment in (d) remain the same if, while keeping the
two bottom-most charges the same, we replace the two topmost
charges in the arrangement with two charges of the same magnitude,
but different signs? You may use diagram(s) to illustrate your
explanation.
Imagine you have four identical charge q, placed on the corners of a square. If q = 6.85 uC, then the side of the square is s = 4.67
cm, calculate the energy needed to bring these charges from infinity to their current configuration.
Chapter 23 Solutions
Physics for Scientists and Engineers
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