### ET103 – AC Fundamentals – Ground

#### by admin

# 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

- 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.
- Calculate the total impedance and phase angle of a series RC circuit.
- Find total current, equivalent impedance and phase angle of a parallel RC circuit.
- Calculate the individual capacitor voltage drops for capacitors in series.
- 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.
- Find total impedance, total current and phase angle of a series and parallel RL circuits.
- Define what is meant by the “Q” of a coil.
- Describe how a transformer works and list important transformer ratings.
- Calculate currents, voltages and impedances of a transformer circuit.
- Identify transformer cores.
- Explain why opposite reactance in series cancel.
- Determine the total impedance and phase angle of a series RLC circuit.
- 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.
- Define the terms real power, apparent power, volt-ampere reactive, and power factor.
- Add, subtract, multiply, and divide with complex numbers.
- Define the term “resonance”.
- List four characteristics of a resonant circuit.
- 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 |