Answer
$C^{\prime}=0.708pF$
Work Step by Step
$
\text { The length } d \text { is effectively shortened by } b \text { so } C^{\prime}=\varepsilon_0 A /(d-b)=0.708 \mathrm{pF} \text {. }
$
Fundamentals of Physics Extended (10th Edition)
by Halliday, David; Resnick, Robert; Walker, Jearl
Published by
Wiley
ISBN 10:
1-11823-072-8
ISBN 13:
978-1-11823-072-5
Chapter 25 - Capacitance - Problems - Page 744: 70a
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