ELECTRICAL WIRING:RESIDENTAL-6 PLANS
18th Edition
ISBN: 9781305098329
Author: MULLIN
Publisher: CENGAGE L
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Chapter 9, Problem 6R
To determine
Calculate the current drawn by a ceiling fan/light.
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5. State transition matrix:
(t), which is defined as,
Calculate analytically the state transition matrix
(t) = et = L¯¹{(sI – A)¯¹}
Show that the answer is the following,
1
e-4t cos(√2t) -
e-4 sin(√2 t)
1
e
-4t
√2
(t) = et
-3
1
-4t sin (√2 t)
e
COS
-4t cos (√2t) + -
e
sin(√2 t)
2-4t sin(√2 t)|
Calculate the following:
(SI - A)-1=
Use the completion - in - the-square technique (CASE 3) to calculate the inverse Laplace:
L¯¹{(SI - A)¯¹} =
A single-core cable working on 66 kV has a conductor diameter of 2 cm and the sheath of inside diameter
is 10 cm. If two metallic intersheaths of diameters 5 cm, 8 cm respectively are used for grading the cable.. If
the maximum electric stress is the same for each layers.
1- Find the voltage of each metallic intersheaths.
2- Find the thickness of each layers.
kΩ
Chapter 9 Solutions
ELECTRICAL WIRING:RESIDENTAL-6 PLANS
Ch. 9 - What circuit supplies the Master Bedroom?Ch. 9 - What unique type of electrical protection is...Ch. 9 - Prob. 4RCh. 9 - Prob. 5RCh. 9 - Prob. 6RCh. 9 - What is the estimated load in volt-amperes for the...Ch. 9 - Prob. 8RCh. 9 - How many conductors enter the ceiling fan/light...Ch. 9 - What type and size of box may be used for the...Ch. 9 - Prob. 11R
Ch. 9 - a. Does the circuit for the Master Bedroom have a...Ch. 9 - Approximately how many feet (meters) of 2-wire...Ch. 9 - If the cable is laid in notches in the corner...Ch. 9 - Prob. 15RCh. 9 - Prob. 16RCh. 9 - Prob. 17RCh. 9 - Prob. 18RCh. 9 - Prob. 19RCh. 9 - Show your calculations of how to select a proper...Ch. 9 - Prob. 21RCh. 9 - The following is a layout of the lighting circuit...Ch. 9 - Prob. 23RCh. 9 - Prob. 24RCh. 9 - May a standard electronic dimmer be used to...Ch. 9 - Prob. 26R
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