Electrical Wiring Residential
18th Edition
ISBN: 9781285170954
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
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Question
Chapter 21.1, Problem 2R
a.
To determine
Mention the name of the branch circuit that is connected to the food waste disposer.
b.
To determine
Mention the size of the wire used to connect the food waste disposer.
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5. Consider following feedback system.
R(s) +
100
S+4
+1
Find the steady-state error for (i) step input and (ii) ramp input.
6. Find (i) settling time (Ts), (ii) rise time (Tr), (iii) peak time (Tp), and (iv) percent
overshoot (% OS) for each of the following systems whose transfer functions are
given by:
a) H(s) =
5
s²+12s+20
5
b) H(s) =
s²+6s+25
c) H(s) =
(s+2)
(s²+12s+20) (s²+4s+13)
Use dominant pole approximation if needed.
7. Answer the following questions. Take help from ChatGPT to answer these questions
(if you need). But write the answers briefly using your own words with no more than
two sentences and make sure you check whether ChatGPT is giving you the
appropriate answers in the context of class.
a) Why do we need transient performance metrics? Name a few of such metrics.
b) Define (i) settling time, (ii) rise time, (iii) peak time and (iv) percent overshoot.
c) What is damping ratio? How does overshoot change with the change of damping
ratio? When do we have zero overshoot?
d) What is the criterion for selecting dominant pole in higher order systems? When
dominant pole approximation is not valid? How will you calculate the transient
performance metrics for the case when dominant pole approximation does not
hold?
Chapter 21 Solutions
Electrical Wiring Residential
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