DORDT COLLEGE ENGINEERING DEPARTMENT
LINEAR CIRCUITS AND ELECTRONICS -- EGR 220, PHYS 206
(FALL 2009)

PROBLEM SETS

(Last update: 12/18/2009 11:35 am
PS
#   		Assigned Due Returned Problems Assigned
(In Dorf & Svoboda unless otherwise noted)
40

12/09 ---
---
--- 		  Read 12.6
  Study for the final exam which will be
  Wednesday, December 16, from 3:30 to 5:30 pm.
39

12/07 12/09

12/09
at
5:00 PM

12/10
at
3:00 PM 		  Read 12.1, 12,2, 12.3, 12.4, 12.5
  Do P12.3-1, P12.4-3, P12.5-1
 
  On Wednesday, 12/09 there will be a box labeled
  "EGR 220 Homework" near Prof. De Boer's office
  door. Drop your homework in the box by 5 PM
  Wednesday, 12/09 for final grading.
 
  This problem set will be graded and ready for
  pickup by 5 PM Thursday, 12/10. Pick your
  homework up from Prof. De Boer's plastic bin
  near the engineering pod door.
 
  Note: On Wednesday, 12/09, when this problem
  set was due for peer grading Prof. De Boer
  noticed that problem 12.5-1 requires reading of
  Section 12.6 in order to understand how to
  work the problem. Thus assignment 40 was
  added.
---

--- ---
---
--- 		  Review 11.4 Read 11.10
  Do P11.4-4 and prove your results, P11-10.2,
  P11-10-4
  Note errata on P11.4-4
  NOTE: THIS WILL NEVER BE ASSIGNED
38

12/04 12/07
12/09
12/10
at
3:00 PM 		  Review 11.4, Read 11.6
  Do P11.4-1c and prove your result, P11.6-1
 
  This problem set will be graded and ready for
  pickup by 5 PM Thursday, 12/10. Pick your
  homework up from Prof. De Boer's plastic bin
  near the engineering pod door.
37

12/02 12/04
12/07
12/09 		  Review 11.4, Read 11.5
  Do P11.4-1b and prove your result, P11.5-4
36

11/23 12/02
12/04
12/07 		  Read 11.1, 11.2, 11.3, 11.4
  Do P11.3-1, P11.3-4, P11.4-1a
  For problem P11.4-1 do part a only, but use
  Equation 11.4-3 (page 475) to prove the result.
35

11/20 11/23
12/02
12/04 		  Read 10.9, 10.10, 10.11
  Do P10.9-1, P10.10-2, P10.11-4
 
  Note errata on Page 460 (Relates to P10.11-4)
34

11/18 11/20
11/23
12/02 		  Read 10.7, 10.8
  Do P10.7-3, P10.8-2, P10.8-3
 
  Note errata on P10.7-3 and P10.8-2
33

11/16 11/18
11/20
11/23 		  Read 10.5, 10.6
  Optional reading:
          Prof. DB's notes, Siusoidal Steady-State
          Prof. DB's notes, Review Complex Numbers
 
  Do P10.5-3, P10.5-4, P10.6-2
 
  Note: In this text, notation such as
  Cejw means the same thing as
  C/w where w is in degrees.
  Note errata on P10.5-3
  Note errata on P10.5-4 Note errata on P10.6-2
32

11/13 11/16
11/18
11/20 		  Read 10.1, 10.2, 10.3, 10.4
  Do P10.3-1, P10.3-3, P10.3-6
31

11/11 11/13
11/16
11/18 		  Review 9.3, Read 9.4, 9.5
 
  Do P9.3-2 (use the operator method)
  P 9.4-1 (note that you start with the answer
                to P9.3-2 which is given in P9.3-2)
  P9.5-1
 
  Note errata on P9.3-2
30

11/09 11/11
11/13
11/16 		  Reveiw 9.3
  Do P9.3-1 except use the operator method
  P9.3-2 except use the direct method
 
  Note errata on P9.3-1 and errata on P9.3-2
29

11/06 11/09
11/11
11/13 		  Read 9.1, 9.2, 9.3
  Do P9.3-1, and note errata on 9.3-1
 
  Hints: Note that in Table 9.3-1 on page 353 of
  your text, variable x2(t) is the one you will
  eventually leave in the differential equation, thus
  vc(t) plays the role of x2(t). In step two, for
  this problem consider a KVL equation around the
  outer loop. For step three, consider a KCL
  equation at the top right node. Manipulate
  that equation as needed to get it into the form
  iL(t) = . . .   and further manipulate it to the form
  diL(t)/dt = . . . Use both forms in step four as
  needed to eliminate iL(t) and diL(t)/dt from the
  step two equation.
28

11/02 11/06
11/09
11/11 		  Read 8.7, 8.8, Scan 8.9, 8.10
  Do P8.7-2, P8.7-4
 
  Note: On page 331 our texbook mentions
  MATLAB's "dsolve" function. This function is
  not supported on Dordt's version of MATLAB.
  The main point is that sometimes people use the
  symbol D instead of s to represent the
  differential operator.
 
  Hints for P8-7-2:
  1.) Let iL be the current downward through
       the inductor.
  2.) Consider initial conditions for iL and v at t = 0–
  3.) Consider initial conditions for iL and v at t = 0+
  4.) Write KCL at top right node, valid for t > 0.
       Use variables iL(t) and v(t).
  5.) Use the equation iL(t) = (1/L)∫v(t)dt to
       eliminate iL(t) from the KCL equation.
  6.) Differentiate both sides of the KCL equation
       and solve the resulting D.E. for v(t).
 
  (Also study for the test on Wednesday, 11/04)
27

10/30 11/02
11/06
11/09 		  Review 8.4, Read 8.5, 8.6
  Do P8.4-4, P8.5-2, P8.6-4
 
  Note errata on pages 314 and 315.
 
  Optional reading about artificial pacemakers.
  Optional reading about the engineer who
  designed the first wearable pacemaker, Bakken.
26

10/28 10/30
11/02
11/06 		  Review 8.3, Read 8.4
  Do 8.3-8, P8.4-1
  Note errata on P8.4-1.
25

10/26 10/28
10/30
11/02 		  Review as needed in Ch. 7 and Sup7.11
  Read Chapter 8 introduction and 8.1, 8.2, 8.3
  Do P7.6-5, P8.3-1, P8.3-7
  Note errata on P8.3-1.
 
  Optional reading relating to P8.3-7
  Optional 18 min. video includes the scene
  shown as a still photo on page 340 in our text.
  (The scene occurs at about 11:14 in the video.)
  A color version of the photo in our text.
24

10/23 10/26
10/28
10/30 		  Read 7.8, 7.9, 7.14 (We will skip 7.10, 7.13)
  Optional review: read Section 7.12
  Do 7.8-1, P7.9-1
23

10/21 10/23
10/26
10/28 		  Review as needed 7.3, 7.44, 7.11, Sup7.11
  Read 7.6, 7.7, 7.8
  Optional reading, "Inductor" in Wikipedia
  Do P7.4-3, P7.6-3, P7.7-2
  Note errata on P7.6-3.
 
  Note: On Wednesday, 10/28, at 4:24 PM the
  posted solutions for this problem set were
  updated to include a MathCAD version of the
  solution to P7.4-3.
22

10/19 10/21
10/23
10/26 		  Reveiw Chapter 6 and 7.1 through 7.4 as needed.
  Read 7.5
  Do P6.5-4, P7.3-4, P7.5-1
21

10/16 10/19
10/21
10/23 		  Read 7.11 and the supplement to 7.11
  Do P7.4-1
  Note: in P7.4-1 you should find closed form
  mathematical functions to express the results
  to be plotted. These functions will have to be
  shown in piecewise form. Then plot these
  functions via a computer or accurately by hand.
  (Matlab or Mathcad are strongly recommended.)
 
  Note errata on Page 275, Equation 7.11-1.
 
  Note: P7.4-1 can be made more challenging by
  determining and plotting for 0 < t < 8 s.
20

10/14 10/16
10/19
10/21 		  Review Chapter 6 and 7.1, 7.2, 7.3 as needed.
  Read 7.4
  Do P6.6-7, P7.3-3
19

10/12 10/14
10/16
10/19 		  Review Chapters 1 - 6 as needed
  Read 7.1, 7.2, 7.3
  Optional reading, "Capacitor" in Wikipedia
  Optional reading, "Potentiometer" in Wikipedia
  Do DP3-1, P6.4-6, P7.3-1
  Note errata on DP3-1.
18

10/09 10/12
10/14
10/16 		  Review Ch 1 - 5 as needed
  Read 6.6, 6.11, 6.12
  Do VP2-2, VP2-3, P6.6-3 subject to the restriction
  that no resistor may be larger than 500 kohms or
  smaller than 500 ohms.
 
  Note that VP2-3 is not in your textbook.
  Click the link to see the problem statement.
17

10/07 10/09
10/12
10/14 		  Review Ch 1 - 5 as needed
  Read 6.5
  Do P4.7-4, P4.7-9, P6.5-1
16

10/05 10/07
10/09
10/12 		  Review Ch 1 - 5 as needed
  Read 6.1, 6.2, 6.3, 6.4
  Do P4.5-7, P6.4-1, P6-4-2
  Note: P4.5-7 is not in your text. Click the
  link to see the problem statement.
15

 9/28 10/05
10/07
10/09 		  Review Ch 4, 5
  Do SP4-4, SP4.1, P5.6-2
  Note: SP4-4 and SP4.1 can be done during lab.
  (Also study for the Test on Wednesday, 9/30.)
14

9/25  9/28
10/05 
10/07 		  Review 5.1 through 5.7, Skip 5.8,
  Read 5.9, 5.10, 5.11
  Do P5.4-3, P5.5-9, P5.7-5
  Note errata on P5.5-9 part (b).
13

9/23 9/25
9/28
10/05 		  Read 5.6, 5.7.   Note errata in table 5.6-1
  Do P5.6-4, P5.7-2, P5.7-3
  Note errata on answer to P5.6-4.
  Start reviewing for the test on Wednesday, 9/30.
12

9/21 9/23
9/25
9/28 		  Read 5.5.   Note errata in Table 5.5-1
 
  Do P5.5-1
 
       P5.5-4 Hint: Use nodal or mesh analysis to
                          find voc or isc,
 
       P5.5-6
 
  Note errata on Problem P5.5-6.
11

9/18 9/21
9/23
9/25 		  Read 5.4
  Do P5.4-1, P5.4-2, P5.4-4
10

9/16 9/18
9/21
9/23 		  Scan over 4.8, 4.11, 4.12, Read 5.1, 5.2, 5.3
  Do P4.7-4, P4.7-12, P5.3-1
  Note errata on P4.7-12.
  Also note errata on page 182, (P5.3-1).
9

9/14 9/16
9/18
9/21 		  Review 4.6, Read 4.7
  Do 4.6-4, 4.6-5, 4.7-2
8

9/11 9/14
9/16
9/18 		  Review 4.4, 4.5, Read 4.6
  Do 4.4-6, 4.5-4, 4.6-1
7

9/09 9/11
9/14
9/16 		  Read 4.4, 4.5
  Do P4.4-3, P4.4-4, P4.5-1
6

9/07 9/09
9/11
9/14 		  Read 4,1, 4.2, 4.3
  Do P4.3-2, P4.3-3, P4.3-4
5

9/04 9/07
9/09
9/11 		  Read 3.6 through 3.11
  Do P3.5-5, P3.7-3, P3.7-5
4

9/02 9/04
9/07
9/09 		  Read 3.4, 3.5
  Do P3.4-4, P3.4-5, P3.5-3
  Note errata on P3.5-3.
3

8/31 9/02
9/04
9/07 		  Read 3.1, 3.2, 3.3
  Do P2.10-2, VP2-1, P3.3-2
  Note errata on VP2-1.
2

8/28 8/31
9/02
9/04 		  Read 2.7 through 2.13
  Do P2.7-1, P2.7-2, P2.8-1, P2.10-1
1

8/26 8/28
8/31
9/02

See
note
2
below 		  Scan Chapter 1 and
           Chapter 2 through Section 2.6.
  Review as necessary.
  You may also refer to the EGR 103 handout.
  (103 Handout available via courses@dordt here)
 
  Do P1.3-4, P1.6-2, P1.6-3, P2.5-7.
  Bring homework questions to class on Friday.
  Note errata on P1.3-4.

Note 1) Homework must be ready for peer grading and discussion in class on the first listed due date. It must be turned in for a final grade on the second listed due date. Peer grading will be 1/5 (20%) of the homework grade.

Note 2) If the "Returned" date is a link, then solutions are available to students in the current semester's course. The links are served by the courses@dordt system. If you click the link and get a login screen, use your usual courses@dordt login. Then use the back icon (or alt-left-arrow on the keyboard) twice to get back to the link and click it again. The link only works after you are logged in.

Note 3) Problems sets shown above with no "assigned" date are tentative. More problems might be added, expected due dates might change, but problems shown will eventually be assigned.

Note 4) If you are having difficulty reading the latest version of this page it may have to do with your browser's cached memory. Read this note on cached pages to solve the problem.

Note 5) Your textbook includes "Exercises" which are embedded within the chapters and "Problems" which are found at the end of each chapter. Items in the lists above that start with "P" are problems—look for them at the end of the chapter. Items that start with "Ex" are Exercises—look for them in the body of the chapter. Items that start with "VP" or "DP" are also found at the end of the chapter, after the "P" problems.