Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 17 - Electric Potential - Problems - Page 496: 10

Answer

$2\times10^{-5}m$

Work Step by Step

Assume that the plates are large enough that the electric field is uniform. Use equation 17–4b to find the separation. $$|E|=\frac{V_{ba}}{d}$$ $$d=\frac{V_{ba}}{|E|}=\frac{45V}{3\times10^6V/m}=1.5\times10^{-5}m\approx 2\times10^{-5}m$$
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