ELECTRICITY FOR TRADES (LOOSELEAF)
3rd Edition
ISBN: 9781260437454
Author: Petruzella
Publisher: MCG
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Textbook Question
Chapter 8.1, Problem 10RQ
In what way is the construction of an adjustable resistor different from that of a fixed resistor?
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Phase (deg)
Magnitude (dB)
-20
-40
-60
-80
-100
°
-90
-180
-270
10-1
(i)
°
Problem 5
Consider a unity (negative) feedback system with a proportional controller. The Bode plot of the
plant transfer function G(s) is given as below.
System: sys
Frequency (rad/s): 1
Magnitude (dB): 13.9
System: sys
Frequency (rad/s): 14.9
Magnitude (dB): 6.58
System: sys
Frequency (rad/s): 1
Phase (deg): -9.76
10°
System: sys
Frequency (rad/s): 25.6
Magnitude (dB): -0.0703
System: sys
Frequency (rad/s): 41.3
Magnitude (dB): -8.06
System: sys
Frequency (rad/s): 200
Magnitude (dB): -44.4
System: sys
Frequency (rad/s): 14.9
Phase (deg): -110
System: sys
Frequency (rad/s): 25.6
Phase (deg): -148
System: sys
Frequency (rad/s): 41.3
Phase (deg): -180
System: sys
Frequency (rad/s): 200
Phase (deg): -247
101
Frequency (rad/s)
102
Find the gain crossover frequency, phase crossover frequency, gain margin and phase
margin of the system. Is the closed-loop system stable?
(ii)
What is the steady-state error of the…
solve and show in detail all calculations
solve and show in detail all calculations
Chapter 8 Solutions
ELECTRICITY FOR TRADES (LOOSELEAF)
Ch. 8.1 - In what way is resistance wire different from the...Ch. 8.1 - What is the trade name for the most popular type...Ch. 8.1 - Prob. 3RQCh. 8.1 - Name the three ways by which resistors are rated.Ch. 8.1 - Resistors are classified as passive devices. Why?Ch. 8.1 - Identify the type of circuit that generally...Ch. 8.1 - State two functions served by a fusible resistor.Ch. 8.1 - What advantage do film resistors have over...Ch. 8.1 - What are the two configurations for chip...Ch. 8.1 - In what way is the construction of an adjustable...
Ch. 8.1 - Compare the connection and control function of a...Ch. 8.1 - If the wiper arm of a linear potentiometer is...Ch. 8.1 - Explain how a 10-turn trim pot is adjusted.Ch. 8.1 - Compare the way the resistance varies in a linear...Ch. 8.1 - Identify the color bands for each of the following...Ch. 8.1 - A 680- resistor has a rated tolerance of 10...Ch. 8.1 - What is the color code for a 365- five-band...Ch. 8.1 - Determine the resistance value and percentage of...Ch. 8.1 - Determine the resistance value and percentage of...Ch. 8.2 - Calculate the total resistance for each of the...
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- solve and show in detail all calculationsarrow_forwardProblem 1 Consider the following system. In the figure, y(t) denotes the voltage across the capacitor. u(t) 1+ R W L + 0000 y(t) C Y(s) (i) Find the transfer function H(s): = of the system. U(s) Now suppose, R 10 KQ, L = 0.5 mH and C = 10 μF. (ii) Find the poles and zeros. Is the system BIBO stable? (iii) Compute settling time, rise time, peak time and % overshoot of the step response of the system. What the steady-state output for unit step input?arrow_forwardA 3-phase, 52 H.P, 50 Hz, 6-Pole, Y- connected induction motor runs at a speed of 980 rpm.The motor is supplied from 380 V mains and it takes a rated current of 80 A at 0.8 p.f. If the total stator losses are 1.7 kW, determine: the air-gap power, rotor copper loss, friction and windage losses?arrow_forward
- 12-3) PDF, mean, & variance A random variable has the PDF shown in the figure. a) Find the numerical value of the parameter K. b) Write the numerical expression for the PDF. c) Find the probability that the random variable is negative. d) Find the mean of x, the expected value of x², and the variance of x. K Px(x) 3 Xarrow_forwardPlease show all stepsarrow_forward12-4) Gaussian random variable A Gaussian random variable has a mean value of 4 and a standard deviation of 3. Find the probability that the value of the random variable exceeds 16. Repeat for the probability that it is less than -2. The discussion of Marcum's Q function given in the lecture notes may be helpful.arrow_forward
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