ET103 – AC Fundamentals – Ground

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Course Syllabus

  • Course Number: ET103
  • Course Title: AC Fundamentals
  • Prerequisite: None
  • Effective Contact Hours: 100
  • Quarter Credit Hours: 8.0
  • Date Syllabus Last Reviewed:  1/1/11

Course Description

This course is intended to familiarize the student with the basic principles of alternating voltage, current and power. It will also include a study of the basic components and circuits associated with alternating current and their applications. Wave-form analysis is included. Lab work covers operation of oscilloscopes, power supplies and signal generators for circuit measurements.

Student Learning Outcomes

  1. Calculate the reactance of an individual capacitor or series-connected, and parallel connected capacitors when the frequency and capacitance are known.
  2. Explain how Ohm‟s law can be applied to capacitive reactance.
  3. Explain why the current leads the voltage by 90o for a capacitor.
  4. Calculate the total impedance and phase angle of a series RC circuit.
  5. Find total current, equivalent impedance and phase angle of a parallel RC circuit.
  6. Calculate the individual capacitor voltage drops for capacitors in series.
  7. Explain how inductive reactance reduces the amount of alternating current.
  8. Calculate the reactance of an individual inductor or series -connected, and parallel connected inductors, when the frequency and inductance are known.
  9. Explain how Ohm‟s law can be applied to inductive reactance.
  10. Explain why voltage leads the current by 90o for an inductor.
  11. Find total impedance, total current and phase angle of a series and parallel RL circuits.
  12. Define what is meant by the “Q” of a coil.
  13. Describe how a transformer works and list important transformer ratings.
  14. Calculate currents, voltages and impedances of a transformer circuit.
  15. Identify transformer cores.
  16. Explain why opposite reactance in series cancel.
  17. Determine the total impedance and phase angle of a series RLC circuit.
  18. Explain the j operator and define a complex number.
  19. Explain the difference between the rectangular and polar forms of a complex number.
  20. Convert a complex number from polar to rectangular form and vice-versa.
  21. Define the terms real power, apparent power, volt-ampere reactive, and power factor.
  22. Add, subtract, multiply, and divide with complex numbers.
  23. Define the term “resonance”.
  24. List four characteristics of a resonant circuit.
  25. State the difference between a low-pass and high-pass filter.

Textbook(s)

Grob's Basic Electronics
Mitchel E. Schultz, Western Wisconsin Tech. Clg.
©2011,  ISBN13: 9780077410094

 

Grob's Basic Electronics, Experiments Manual
Frank Pugh, Santa Rosa Junior College
Wes Ponick, Agilent Technologies
©2011, ISBN13: 9780077427108


Instructor Bio:

Enter hyperlink to instructor wiki


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Instructional Methods

This course will combine lecture, classroom discussion, audiovisuals, hands-on experiences, online assignments and in class student assignments to facilitate students’ achievement of course objectives. The outline below is a detailed week by week outline of required readings, activities, assignments, exams and assignments for the class.

Instructional Method: G = Ground, OL = Online

Content Outline From:

Grob's Electronics, 11th Edition/Mitchell Schultz/McGraw-Hill/ISBN:9780073510859

Week 1

Lecture Objectives: After completing this week, the student will be able to:

  • Calculate the reactance of an individual capacitor or series-connected, and parallel connected capacitors when the frequency and capacitance are known.
  • Explain how Ohm‟s law can be applied to capacitive reactance.
  • Explain why the current leads the voltage by 90o for a capacitor.
  • Define the term impedance and calculate the total impedance and phase angle of a series RC circuit.
Instructional Method
Assignment/Activity G OL EQUIP
Grob: Chapter 17 – Capacitive Reactance X
Grob: Chapter 18 – Capacitive circuits X
Lab – in-house capacitive reactance X 4-in-1 Trainer, DMM, Scope

Week 2

Lecture Objectives: After completing this week, the student will be able to:

  • Find the total current, equivalent impedance. and phase angle of a parallel RC circuit.
  • Explain how a capacitor can couple some as frequencies but not others.
  • Calculate the individual capacitor voltage drops for capacitors in series..
Instructional Method
Assignment/Activity G OL EQUIP
Grob: Chapter 18 Capacitive circuits X
Lab Manual: Experiments – 18-1, and 18-2 X 4-in-1 Trainer, DMM, Scope
TEST 1 X

Week 3

Lecture Objectives: After completing this week, the student will be able to:

  • Explain how inductive reactance reduces the amount of alternating current.
  • Calculate the reactance of an individual inductor or series -connected, and parallel connected inductors, when the frequency and inductance are known.
  • Explain how Ohm‟s law can be applied to inductive reactance.
  • Explain why voltage leads the current by 90o for an inductor.
  • Calculate the total impedance, total current and phase angle of a series and parallel RL circuits.
  • Define what is meant by the “Q” of a coil.
Instructional Method
Assignment/Activity G OL EQUIP
Grob: Chapter 20 and 21 X
Experiments – in-house labs “Inductive Reactance”, “ Effects of changing values of frequency or components in RL circuits” X 4-in-1 Trainer, DMM, Scope

Week 4

Lecture Objectives: After completing this week, the student will be able to:

  • Describe how a transformer works and list important transformer ratings.
  • Calculate currents, voltages and impedances of a transformer circuit.
  • Identify transformer cores.
Instructional Method
Assignment/Activity G OL EQUIP
Grob: Chapters 19 Sections 19-6 and 19-7 X
Lab in-house “Basic Transformer” X 4-in-1 Trainer, DMM, Scope
TEST 2 MID TERM X

Week 5

Lecture Objectives: After completing this week, the student will be able to:

  • Explain why opposite reactance in series cancel.
  • Determine the total impedance and phase angle of a series RLC circuit containing resistance, capacitance, and inductance.
  • Explain the j operator and define a complex number.
  • Explain the difference between the rectangular and polar forms of a complex number.
  • Convert a complex number from polar to rectangular form and vice versa..
Instructional Method
Assignment/Activity G OL EQUIP
Grob: Chapter 23 and 24 X
Lab Manual: Experiment- 23-1 X 4-in-1 Trainer, DMM, Scope

Week 6

Lecture Objectives: After completing this week, the student will be able to:

  • Determine the total current, equivalent impedance, and phase angle of a parallel circuit containing resistance, capacitance, and inductance.
  • Define the terms real power, apparent power, volt-ampere reactive, and power factor.
  • Add, subtract, multiply, and divide with complex numbers.
  • Explain how to use complex numbers to solve series and parallel and circuits containing resistance, capacitance, and inductance.
Instructional Method
Assignment/Activity G OL EQUIP
Grob: Chapter 5 – sections 5-5 and 5-7, 5-8 X
Lab Manual: Experiment 5-3 and 5-4 X 4-in-1 Trainer, DMM, Scope
TEST 3 X

Week 7

Lecture Objectives: After completing this week, the student will be able to:

  • Define the term “resonance”.
  • List four characteristics of a resonant circuit.
  • List three characteristics of a parallel resonant circuit.
  • Calculate the “Q” of a series or parallel resonant circuit.
  • Explain and calculate the bandwidth of a resonant circuit..
Instructional Method
Assignment/Activity G OL EQUIP
Grob: Chapter 25 Resonance X
Lab Manual: Experiment – 25-1 X 4-in-1 Trainer, DMM, Scope

Week 8

Lecture Objectives: After completing this week, the student will be able to:

  • State the difference between a low-pass and high-pass filter.
  • Explain what is meant by pulsating direct current.
  • Explain how an RC coupling circuit couples alternating current but blocks DC.
  • Explain the function of a bypass capacitor.
  • Find cutoff frequency, output voltage, and phase angle of a basic RL and RC filters.
  • Explain how resonant circuits can be used as band-pass or band-stop filters.
  • Review for final.
Instructional Method
Assignment/Activity G OL EQUIP
Grob: Chapters 26 X
Lab Manual: Experiments 25-2 and 26-1 X 4-in-1 Trainer, DMM, Scope
TEST 4 (FINAL) X