Physics Technology Update (4th Edition)

Published by Pearson
ISBN 10: 0-32190-308-0
ISBN 13: 978-0-32190-308-2

Chapter 20 - Electric Potential and Electric Potential Energy - Problems and Conceptual Exercises - Page 723: 107

Answer

B

Work Step by Step

The capacitance is given by C = $\epsilon k\dfrac{A}{d}$ , where $\epsilon$ = 8.8 X $10^{-12}$ F/m, A = cross sectional area of the parallel plate capacitor = 1.8 $10^{-2} m^{-2}$, d = distance between the plates = 2.0 m, and k = dielectric constant = 95. So C = 95 X 8.8 X $10^{-12} \times \dfrac{1.8 \times 10 ^{-2}}{2}$ C = 7.6 X $10^{-12}$.
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