ELECTRICAL WIRING:RESIDENT.-TEXT (PB)
19th Edition
ISBN: 9781337116213
Author: MULLIN
Publisher: CENGAGE L
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Chapter 1, Problem 10R
a.
To determine
Mention whether Underwriters Laboratories (UL) and the other recognized testing laboratories approve products or not.
b.
To determine
Explain the function of testing laboratories.
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Q:
A rectangular waveguide with dimensions a = 2.5 cm, b = 1 cm is to operate at 15 GHz. σ =
0, E4, μ = 1
1- At which frequencies this type of TL (transmission line) operate ?
2- Why this this type is used in such frequencies?
3- Calculate phase constant for TE10 mode.
4- Calculate the phase velocity and wave impedance for the same mode.
K
Q1/ For the system G(s)=
(s+2)(s+4)(s+5)
H(s)=1
a. Draw the Bode log-magnitude and phase plots.
b. Find the range of K for stability from your Bode plots.
c. Evaluate gain margin, phase margin, zero dB frequency, and 180°
frequency from
your Bode plots for K = 200
Q3/A unity-feedback system with the forward transfer function
S(S+7)
is operating with a closed-loop step response that has 15% overshoot. Do the
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a. Evaluate the settling time.
b. Design a PD compensator to decrease the settling time by three times.
Chapter 1 Solutions
ELECTRICAL WIRING:RESIDENT.-TEXT (PB)
Ch. 1 - Prob. 1RCh. 1 - Prob. 2RCh. 1 - Does the NEC provide minimum or maximum standards?...Ch. 1 - What do the letters UL signify?Ch. 1 - What section of the NEC states that all listed or...Ch. 1 - Prob. 6RCh. 1 - Prob. 7RCh. 1 - Does compliance with the NEC always result in an...Ch. 1 - Name two nationally recognized testing...Ch. 1 - Prob. 10R
Ch. 1 - Prob. 12RCh. 1 - A junction box on a piece of European equipment is...Ch. 1 - Prob. 14RCh. 1 - You will learn in Chapter 3 that residential...Ch. 1 - Prob. 16RCh. 1 - What can you do to reduce or eliminate the...Ch. 1 - What is the NEC definition of a qualified person?Ch. 1 - Are low-voltage systems totally safe? Explain.Ch. 1 - Prob. 21RCh. 1 - What do the letters PPE stand for?...Ch. 1 - Prob. 23RCh. 1 - Where might you obtain information about...Ch. 1 - Prob. 25R
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- K Q2/ Consider the system G(S) H(S)=1.5 0.4923. S(S+1)(S+2) a. Evaluate the steady-state error for a unit ramp input. b. Design a lag compensator to improve the steady-state error by a factor of 10(increase the static velocity error constant Kv to about 10 times) to get a new dominant closed-loop poles. s=-0.3± j0.55. place the zero of the lag compensator at s=-0.05 c. if R1= 10K, R2=5K2, R3= 10K2 design the lag compensator using Op amparrow_forwardIf the switch in Fig. 4 has been open for a long time and is closed at t = 0, find vo(t). t=0 292 ww + ΔΩ 3F= Vo 12 Varrow_forwardA 3-phase, 50 Hz, 132 kV overhead line transpose system of bundle conductors .a radius of conductor is 0.5 cm. Calculate the total inductance of the line. 4m bi cl 4m Am biarrow_forward
- Control limits are to be established based on the average number inspected from the information in Exercise 8. What are these control limits and the central line? Describe the cases where individual control limits will need to be calculated.arrow_forwardCan you show why the answer is 3.55Aarrow_forwardCan you show why the answer is 412 mAarrow_forward
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