Electrical Wiring Residential
19th Edition
ISBN: 9781337101837
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
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Chapter 13, Problem 15R
To determine
List the number of items present in the cable layout for the living room area.
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A rod coincident with the z-axis extends from 0 to -L. If the rod carries a uniform charge density of pL (a) calculate the electric field intensity at a point h on the z-axis. (b) Use your answer to show that when h>>L the rod behaves as a point charge of value plL . (c) How much larger than the length of the rod must h be in order that the answer to part b) is a reasonably accurate estimate.
The separation of two point charges with charges Q1=36pC and ,Q2=9pC respectively, is 3 cm. If a third point charge Q3 is placed on the line joining Q1 and Q2 at a distance d from Q1 find Q3 and d that ensures that the force on all charges is zero.
5. The electric field on the positive z-axis due to a uniformly charged disk of radius a that lies in the
x-y plane with center at the origin is claimed to be given by
- Ps
Z
2E
2
a² + z²
Where ps is the surface charge density on the disk. Without deriving this formula, evaluate it for its
probable correctness. (a) Is its symmetry correct? Explain. (b) If z>> a, it reduces to that of a point
charge of value a²ps (c) if z> z is
large the formula reduces to that of an infinite plane.
Chapter 13 Solutions
Electrical Wiring Residential
Ch. 13 - Prob. 1RCh. 13 - Prob. 2RCh. 13 - Prob. 3RCh. 13 - How many wires must be run between an incandescent...Ch. 13 - Complete the wiring diagram for the dimmer and...Ch. 13 - Is it possible to dim standard fluorescent...Ch. 13 - a. How many wires must be run between a...Ch. 13 - Explain why fluorescent lamps having the same...Ch. 13 - What is the total current consumption of the track...Ch. 13 - Prob. 10R
Ch. 13 - Prob. 11RCh. 13 - Electronic dimmers of the type sold for...Ch. 13 - Prob. 13RCh. 13 - A layout of the outlets, switches, dimmers, track...Ch. 13 - Prob. 15RCh. 13 - Prob. 16RCh. 13 - Prob. 17RCh. 13 - Prob. 18RCh. 13 - May a standard electronic dimmer be used to...Ch. 13 - Prob. 20RCh. 13 - Why should the power be turned off when hooking up...
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