CATALOG
DESCRIPTION: This course serves as an introduction to the
fundamental laws of electricity and electronics. Topics include basic
electrical units, measuring voltage, current, resistance, electric power, Ohm's
Law, series and parallel circuits, DC sources and measuring instruments,
fundamentals of magnetism, AC fundamentals, the oscilloscope, inductance,
capacitance, transformers, semiconductors, diodes and transistors.
Strong
emphasis is placed on how these fundamentals are applied to fields such as
mobile equipment, automotive technologies, and computer electronics . Using MultiSIM
by Electronics Workbench Inc., students learn to design and simulate actual
electronic circuits. In the lab component of the course, students build various
electrical circuits and compare real measurements with those predicted by
MultiSIM simulations. Several labs incorporate the use of PASCO Scientifics’
electronic lab components and sensors coupled to the
PREREQUISITE(S) (IF ANY):
PHY115 Technical Physics or permission of instructor
and MAT112 Algebra and Trig I
COREQUISITE: NONE
Class
Hours: 3
Lab
Hours: 2
Credit
Hours: 4
INSTRUCTOR: Doyle V. Davis, Ph.D.
Phone: 603 752-1113 x 1360
Office Hrs: Tuesday
and Thursday, 12:30 – 5:00 PM, Wednesday, 4:05 –5:15 PM
TEXTBOOK(S) REQUIRED:
Author:
Frank D. Petruzella
Title: Essentials of Electronics
Edition:
2nd edition
Publisher: Glenco – McGraw Hill
RECOMMENDED SUPPLEMENTARY
GENERAL OBJECTIVES OF
COURSE:
As a result of this course the student will be able
to:
Describe
the parts of an atom; define the differences between conductors, insulators,
and semiconductors; list and define the basic electrical units of measure
including voltage, current, and resistance;
use powers of ten in calculations; recognize and/or draw symbols for basic
electrical components; calculate V,I, and R values using Ohm's Law;
use digital multimeters to measure V, I, and R; calculate power dissipations;
use the resistor color code; use a scientific calculator to solve
circuit problems.
Define
key characteristics of series, parallel, and series-parallel circuits including
total resistance, voltages, current, and power dissipations; use Kirchoff's
laws to solve for unknown currents in circuit loops; explain results of
shorts or opens in such circuits, troubleshoot problems in series, parallel, or
series-parallel circuits; and explain how voltage and current dividers work
Explain
how dc and ac voltages are produced; understand Faraday's Law of
induction; determine direction of magnetic fields using "left" and
"right" hand rules; calculate important values related to ac
sine-wave signals; use an oscilloscope to make measurements of DC
and AC signals
Define
capacitance and inductance and calculate values of
capacitance and inductance; calculate time constant values for RC
and RL circuits; calculate values of capacitive and inductive reactance;
analyze ac circuit parameters for capacitive and inductive circuits; calculate
electrical quantities related to series and parallel resonance circuits
including impedance.
Describe
the basic characteristics of various semiconductor diodes;
explain forward and reverse biasing of semiconductor devices; explain the
operation of half-wave, full-wave, and bridge rectifier circuits, with and
without filters; describe the difference between NPN and PNP transistors
and how each is biased; explain the operation of CE, CB, and CC transistor
amplifiers and perform transistor amplifier circuit calculations; and
describe the operation of bipolar junction transistors
LEARNING
ACTIVITIES:
Learning
activities will include short quizzes, chapter tests, problem solving, use of
spreadsheets to prepare charts and graphs of lab results, simulation and
modeling of electronic circuits using MultiSIM by Electronics
Workbench, Inc. and then actually building and testing such circuits with
protoboards and PASCO's 750 interface and DataStudio software.
LIBRARY RESOURCES:
There are many library resources available, both in the
library and online
(http:/www.berlin.nhctc.edu/services/lib/). Please contact the library staff for more
information.
GRADING
POLICY:
Short Quizzes and Circuit
Simulation Problems
Short ten minute quizzes will often be given at the beginning of a class. The
purpose of each quiz is to determine if students understand a concept, problem
solving technique, and/or definition which has been covered recently in the
lectures. Your teacher will announce in advance the nature of each short quiz.
Each week students will complete one or more circuit design/simulation problems
using MultiSIM, the popular circuit design/simulation software developed by
Electronics Workbench, Inc.
At the end of the course, the lowest of the short
quizzes and/or circuit design problems is dropped before determining the
average of the short quiz/circuit design scores. On some but not all of these
short quizzes, students may use their books and notes. There
is no make-up for any short quiz that is missed or circuit design problem that
is not returned for grading on the date it is due. The average of the short quizzes and
circuit simulations will count 20% of the
total grade.
Chapter Tests
Tests are given over each chapter covered in the textbook to assess the
student's current understanding of the material. The major purpose of these
tests is to discover areas of weakness where improvement is needed. Most but
not all of these chapter tests consists of a "closed book" part and
an "open-book" part. The closed book part consists generally of
definitions, multiple choice, and fill-in-the-blank questions designed to test
the conceptual understanding of electronic principles as well as definitions of
important terms and principles. The "open book" part of each chapter
test is designed to test the student's ability to solve electrical/electronic
circuit problems. There
is no make-up for any chapter test that is missed . Students
receive a zero on any missed test. There are rare exceptions to this rule
but in most cases it is strictly enforced. At the end of the course, the lowest
of the chapter tests is dropped before determining the average of the chapter
test scores. The average of the
chapter tests will count 25% of the
total grade.
Lab Activities
Students will receive a grade for each lab completed. The grade on each lab is
determined by several factors including a Post-Lab test . The Post-Lab tests
are designed to assess student understanding about the lab and may include
definitions, fill-in the blank , multiple choice, true-false questions and
solving circuit problems related to that lab. The Post-Lab tests are given at
the beginning of next week’s lab activity.
Students will receive a zero on any lab activity that they miss. THERE
ARE NO MAKE UP LABS. At the end of the
course, the lowest lab activity score will be dropped before averaging the
other lab scores. The "lab average" will be calculated by computing
the numerical average of the scores on all labs. This will count for 30% of the final grade.
Comprehensive Final Exam
A comprehensive examination will be given during the last full week of the
course The exam will cover all topics which have appeared on previous quizzes
and chapter tests plus any material upon which students have not been tested
since the last set of chapter tests. This final exam counts as 25% of the
final grade. Students may use their books and notes on parts but not all
of the final exam. The examination
also includes questions related to the lab activities covered in the course.
Example: Suppose the average of the short quizzes is 70.
Take 70 and multiply by 0.20 since the short quizzes count 20% of the grade.
Suppose the average of the chapter tests is 80. Take 80 and multiply by 0.25
since the chapter tests count 25% of the grade. Now let's say the student has a
90 as an average of the laboratory activities. Since the average of the lab
activities represents 30% of the final grade, take 90 and multiply by 0.30.
Finally, let's suppose the student makes an 80 on the final exam. Since this
counts for 25% of the grade, we multiply the 80 x 0.25.
The total points which have earned is therefore: 70(0.20) + 80(0.25) + 90(0.30) + 80(0.25) = 81
The final numerical average is 81 which is a letter grade of B-. A summary of
the final numerical average and corresponding letter grade appears in the table
below.
Final Average
|
|
Grade |
|
>93 |
|
A |
|
90-92 |
|
A- |
|
87-89 |
|
B+ |
|
83-86 |
|
B |
|
80-82 |
|
B- |
|
77-79 |
|
C+ |
|
73-76 |
|
C |
|
70-72 |
|
C- |
|
67-69 |
|
D+ |
|
63-66 |
|
D |
|
60-62 |
|
D- |
|
0 - 59 |
|
F |
INSTRUCTOR'S
POLICIES:
ACADEMIC HONESTY – Original thinking
and intellectual honesty are central to a college education. Research projects require the ongoing use of
existing works, but students must conduct themselves with proper regard for the
rights of others and of the college, in a context of mutual respect, integrity
and reason. Activities such as
plagiarism and cheating are not acceptable and will not be condoned by the
college. Students involved in such
activities are subject to serious disciplinary action. The following are presented as examples of
academic dishonesty:
1. Misrepresenting
academic work done by someone else as one’s own efforts, with or without
permission of the person.
2. Providing
or using prohibited assistance in assignments and examinations.
3. Unauthorized
communication in any manner with other students during an examination;
collaboration in the preparation of reports or take-home examinations; copying,
giving aid or failing to follow the faculty member’s instructions.
4. Tampering
with or falsifying official college records.
5. Infringing
upon the right of other students to fair and equal access to college library
materials and comparable academic resources.
6. Falsification
of data collected for and presented as part of course requirements.
7. Presenting
as one’s own ideas, another person’s work or words without proper
acknowledgement.
There may be other instances of
academic dishonesty, which will be identified by a faculty member.
REQUIRED
TOOLS OR EQUIPMENT:
Students are strongly advised to purchase a digital multimeter capable of measuring at least voltage, current, and resistance. The ability to check diodes and/or capacitance would also be useful but not absolutely necessary.
A
scientific calculator including the trigonometric, exponential, and logarithmic
functions is required. A graphic calculator such as the TI-83, 89,
etc. is highly recommended but not required .
The course is computationally intensive and includes the
use of spreadsheets in the analysis of data.
SPECIFIC
DIRECTIONS OR RECOMMENDATIONS:
NO FOOD OR BEVERAGES ARE PERMITTED IN THE
CLASS !
This room contains computers and electronics equipment which can be seriously
damaged if exposed to liquids and food particles. There is also the potential
risk of fire and/or electrocution if such equipment is accidentally
short-circuited by spilled beverages and foods.
MAKING UP MISSED WORK.
There is no makeup for chapter tests or activities not returned on time for
grading unless there are extreme circumstances which prevented your attendance.
At the end of the term, the lowest score in each category will be dropped
before the final average is calculated. See Assessment Process and Grading
Policy above. Your instructor in this course is under no obligation to provide
makeup of lectures, hands-on activities, tests or other information missed due
to an unexcused absence.
CLASS ATTENDANCE POLICY:
While class attendance is not required, you are strongly
urged to attend classes. With few
exceptions there is no make up for any activity including laboratory
assignments, short quizzes, and chapter tests.
Sending E-Mail to
your teacher
You
can reach your instructor at ddavis@nhctc.edu.
If you have a documented disability that
may affect your performance in this course, please advise the instructor
immediately so appropriate accommodations may be put in place. Accommodations may be arranged through the Disability
Services Coordinator in room #104.
Accommodations and assistive technology are available to students at no
additional cost, and should be accessed at the beginning of each semester.
THE
LAST DAY TO DROP THIS COURSE IS MARCH 28, 2007
Course Time Table -
Spring Semester 2007
|
WEEK |
READING ASSIGNMENTS AND TOPICS COVERED THIS WEEK |
TESTS |
|
Jan. 16-19 |
Chapter
1 – “Safety” (1-16) Circuit
Challenge (16) Chapter
2 – “Instruments, Tools, and Fasteners” (17-29) Both
circuit simulations are due Jan. 24 at the start of class. |
No test
or quiz this week. |
|
Jan. 22-26 |
Chapter
3 – Conductors, Semiconductors, and Insulators (30-38) Both
circuit simulations are due Jan. 31 at the beginning of class |
Jan. 22:
SQ related formulas (15). |
|
Jan.29-Feb. 2 |
Chapter 5 – Basic Electrical Units (51-61) This
circuit simulation is Feb. 7 at the
start of class. Skip Chapter 6 on Electric Connections
. This is an interesting chapter for you to know but we will not have time to
cover this material. |
Jan 29 :
SQ terms in Chap.3
|
|
Feb. |
Chapter 7- Simple Series and Parallel
Circuits (75-90) Circuit
Challenge (90) A Lamp Circuit with a Truth Table Chapter
8- Measuring Voltage, Current, and Resistance (91-111) Circuit
Challenge (111) Using a multimeter to measure current, resistance, and
voltage Both
circuit simulations are due Feb. 14 at the start of class. |
Feb. 5 : Tests Chapters 1
-4 Feb. 7 :
SQ review questions and problems in
Chap.5 |
|
Feb. 12-16 |
Chapter
9- Circuit Conductors and Wire Sizes (Voltage Drops and Power Loss) (112-122) Circuit
Challenge (122) Simple Automotive Circuit Chapter
10- Resistors (123-136) Circuit
Challenge (136) Using a multimeter to measure current, resistance, and
voltage Both
circuit simulations are due Feb. 21 at the start of class. |
Feb. 12 :
SQ series and parallel circuits Feb. 14 :
SQ problem 1 (111) |
|
Feb. 19-23 |
Chapter
11- Ohm’s Law (137-148) Circuit
Challenge (148) Verifying Ohm’s Law This
circuit simulation is due Feb. 28 at the start of class. |
Feb. 19 :
No Class Feb. 21 :
SQ (121) and
(135-136) |
|
Feb.26 |
Chapter
12- Solving the Series Circuit (149-161) Voltage drop, polarity, common ground, open and short circuits, series aiding sources, series opposing sources Circuit
Challenge (161) Properties of a Series Circuit Chapter
13- Solving the Parallel Circuit (162-171) Branches,
open and short circuits, calculating net resistance Circuit
Challenge (171) Properties of a Parallel Circuit These
circuit simulations are due March 7 at the start of class. |
Feb. 26: Tests Chapters 5-8 Feb.28 :
SQ problems(146-147) |
|
Mar. |
Chapter
14- Solving the Series -Parallel Circuit (172-186) Kirchoff’s
Voltage and Current Laws, Equivalent Resistance, open and short circuits Circuit
Challenge (186) Properties of a Series/Parallel Circuit |
Mar. 5 :
SQ problems(159-160) Mar. 7 :
SQ problems(169-170) |
|
Mar. 12-16 |
Spring
Break- Study for
tests over Chapters 9 – 12 on Wed,
Mar. 21 |
|
|
Mar. |
Chapter
15- Magnetism
(187-196) Law of
magnetic poles, magnetic field, magnetic flux, magnetic lines of force,
electron theory of magnetism, retentivity, magnetic saturation Chapter
16- Electromagnetism (197-208) Left hand
conductor and coil rules, permeability, magnetomotive force, ampere turns,
reluctance, solenoids, transformers, electromagnets |
Mar. 19 :
SQ problems(184-185) Mar. 21: Tests Chapters 9-12 |
|
Mar.26-30 |
Chapter
21 – Direct and Alternating Current (259-272) Left hand
conductor and coil rules, permeability, magnetomotive force, ampere turns,
reluctance, solenoids, transformers, electromagnets Circuit
Challenge (272) Function Generator |
Mar. 26 :
SQ p.196 Mar. 28 :
SQ p.208 |
|
Apr. |
Chapter 27 – Motors (367-383) Voltage drop, polarity, common ground, open and short circuits, series aiding sources, series opposing sources |
Apr. 2 :
SQ 271 Apr. 4 :
SQ 271 |
|
Apr. |
Chapter
30 – Inductance and Capacitance (Part
1) (421-442) Inductor,
inductance (L), self-inductance, mutual inductance, Henry (H), Lenz’s Law,
inductive reactance |
Apr. 9 :
SQ 382 Apr. 11: Tests Chapters 13-16 |
|
Apr. |
Chapter
30 – Inductance and Capacitance (Part
2) (421-442) capacitance(C),
farad(F), dielectric, RC time constant, capacitive reactance Circuit Challenge – page 442 Properties of a Series Circuit
|
Apr. 19 No SQ Apr. 21
SQ 441 |
|
Apr. |
Chapter
35- Semiconductor Diodes (505-519) N and P type semiconductors, PN-junction,
operating characteristics, testing
diodes, applications, special purpose diodes Circuit
Challenge (519) Diode Protection Circuit due May 2 at the start of class. |
Apr. 23 SQ 441 Apr. 25
SQ 518 |
|
Apr. |
Chapter
37- Transistors
(537-554) Bipolar
Junction transistors, FETs, NPN, PNP,
emitter, collector, base, biasing, DC alpha, DC beta, current gain, voltage
gain, power gain, source, gate, drain, MOSFET, phototransistor Circuit
Challenge (554) Properties of a NPN
transistor due May 7 at the start of the closed book section of the final
exam. |
Apr 30 SQ 518 May 2: Tests Chapters 21,27,30 |
|
May |
Final Exam WeekMay 7 – comprehensive closed book final exam over all chapters including Chapters 35 and 37. May 9 –
open book problem solving final exam
over all chapters including Chapters 35 and 37. |
May 7 –
Closed Book section of final exam May 9 – Open Book section of final exam |
Note: No classes on days shown below because of holidays,
faculty meetings, or spring break.
Feb. 19 (President's Day),
Mar. 12-16 (Spring Break)
THE LAST DAY TO DROP THIS COURSE IS MARCH
28, 2007
Lab Activities - Spring
Semester 2006
|
WEEK |
LAB ACTIVITIES FOR THIS WEEK |
|
Jan. 16-19 |
Learning
to Use MultiSIM –
students learn to build simple
circuits using the popular electronic circuit design software known as
“MultiSIM”. They build simple series and parallel circuits and
explore the properties of each circuit. |
|
Jan. 22-26 |
Learning
to Use a Digital Multimeter to Measure Voltage, Resistance, and Current - students learn to use a digital
multimeter. They learn the color code
for resistors. They learn to measure
the voltage drop across a set of resistors and also how to use the digital
meter as current meter. |
|
Jan.29-Feb. 2 |
Ohm’s
Law – Using a
variable power supply, students study the relationship between current,
voltage , and resistance for good conductors of electricity. Using precision resistors, students study
how the current through a resistor depends on the resistance and the applied
voltage. They learn to calculate the
power dissipated in the resistor. |
|
Feb. |
Properties
of Series and Parallel Circuits – Students build a series circuit of several lamps and
measure current, voltage drops across the lamps and resistance measurements. They then build a parallel circuit using
the same lamps and compare the results for total resistance, current, and
voltage drops across the lamps . They learn to calculate the total resistance
of a series and parallel circuits. |
|
Feb. 12-16 |
Kirchoff’s Voltage and Current Rules – Students learn to important rules to use when analyzing
circuits. They build a complex
series/parallel circuit and verify Kirchoff’s rules for this circuit. |
|
Feb. 19-23 |
Rheostats and Potentiometers – Students learn the difference between a rheostat and a
potentiometer. They build a circuit
using a rheostat and a potentiometer.
Using MultiSIM, they design a circuit that contains a potentiometer. |
|
Feb.26 |
Diodes – Students study the
electrical properties of various types of diodes including LEDs. ( Light
emitting diodes and Zener diodes.) |
|
Mar. |
Capacitors in Series and Parallel – Students study properties of capacitors in series and
parallel and learn how to calculate the total capacitance |
|
Mar. 12-16 |
Spring
Break |
|
Mar. |
Magnetism
and Faraday’s Law of Induction– Students measure the magnetic field produced by current
flowing in a closed loop of wire. They
measure the magnetic field of a solenoid and observe how the relative motion
between a magnetic field and a coil of wire can produce a current in the
coil. |
|
Mar.26-30 |
Alternating
Current Lab
- Using |
|
Apr. |
Transformers – Students study the properties of a simple transformer. They use the transformer equation (N1/N2 =
V1/V2) to calculate the induced voltage on the secondary side of the
transformer. They compare their
calculations with measurements made using voltage sensors attached to the 750
interface. |
|
Apr. |
Capacitive and Inductive Reactance – Students study the effect of an
applied AC voltage to a circuit containing a resistor and a capacitor. They then look at a circuit containing a
resistor and an inductor. Using the
display features of |
|
Apr. |
Power Supplies – Students build a simple power supply using a single diode
(half-wave rectification). Then they
build a more complex power supply using four diodes (full-wave rectification)
and explore the effect of adding capacitance to the circuit to reduce the
ripple of the supply’s output voltage |
|
Apr. |
Transistor Lab – Students learn the basic properties of an NPN transistor and
build a simple circuit that uses the transistor as a digital switch. |
|
Apr.30 |
Integrated Circuit Lab – Students study two popular integrated circuits – the 741
operational amplifier and the 555 Timer. |
|
May |
Final Exam week – no
labs |
Note: No classes on days shown below because of holidays,
faculty meetings, or spring break.
Feb. 19 (President's
Day), Mar. 12-16 (Spring Break)
THE LAST DAY TO DROP THIS COURSE IS MARCH
28, 2007
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