Fundamentals of Applied Electromagnetics (7th Edition)
7th Edition
ISBN: 9780133356816
Author: Fawwaz T. Ulaby, Umberto Ravaioli
Publisher: PEARSON
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Chapter 4, Problem 54P
An electron with charge Qe = −1.6×10−19 C and mass me = 9.1 × 10−31 kg is injected at a point adjacent to the negatively charged plate in the region between the plates of an air-filled parallel-plate capacitor with separation of 1 cm and rectangular plates each 10 cm2 in area (Fig. P4.54). If the voltage across the capacitor is 10 V, find the following:
- (a) The force acting on the electron.
- (b) The acceleration of the electron.
- (c) The time it takes the electron to reach the positively charged plate, assuming that it starts from rest.
Figure P4.54 Electron between charged plates of Problem 4.54.
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A linear electrical load draws 11 A at a 0.72 lagging power factor./1 153. When a capacitor is connected, the line current dropped to 122 A and the power factor
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Chapter 4 Solutions
Fundamentals of Applied Electromagnetics (7th Edition)
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