This course is approved by the State of Maine Electrical Examination Board as a 45 Hour course in A.C. Electrical theory. This is one of the required core classes toward your Journeyman or Masters License in the state of Maine.
Course Curriculum
Welcome to Basic Electricity II
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UNIT #13
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- Intro & Overview (5:32)
- Magnetism Creates Electricity (9:50)
- Electricity Creates Magnetism (8:09)
- Understanding the Magnetic Field (10:02)
- Why is a Coil So Special? (12:04)
- Flemings Left Hand Generator Rule (8:45)
- The Magnetic Field in a Coil (10:37)
- Lenz Law Introduced (7:39)
- Comparing Current in a Resistor to an Inductor (9:47)
- Rise Time of Current in an Inductor (9:49)
- A Closer Look at the Exponential Curve (8:54)
- What is Inductance? (13:45)
- Solving the RL Time Constant (8:34)
- Summary of Unit 13 (6:21)
UNIT #13- QUIZ
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UNIT #14- BASIC TRIGONOMETRY & VECTORS
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- Introduction to Trigonometry (5:07)
- Squaring and Square Rooting (7:35)
- Squaring and Square Rooting Continued (9:00)
- How to Square Root with your Calculator (9:57)
- Pythagorean Theory- The Formula (9:44)
- Pythagorean Theory (Continued) (11:04)
- Practicing Pythagorean Theory Formulas (11:04)
- SINE, COSINE & TANGENT Introduced (11:11)
- Trigonometry Functions (Continued) (12:03)
- Determining the Angle Based on the Function Type (9:51)
- Getting the Angle- Practice (10:59)
- More Practice on Functions (7:43)
- Introduction to Other Formulas (14:03)
- Other Formulas (Continued) (8:47)
- Practice, Practice, Practice (9:56)
- Introduction to Vector Sum Addition (12:18)
- Summary & Review (3:41)
UNIT #14- QUIZ
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UNIT #15- ALTERNATING CURRENT
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- Intro to A.C. (6:47)
- A.C. Wave Forms (11:58)
- Sine Waves Introduced (9:24)
- Understanding the Construction of a Motor/Generator (10:56)
- Peak & Instantaneous Voltages Introduced (8:48)
- Peak to Peak Voltage & Practice (10:44)
- Determining the Angle of Instantaneous Voltage (10:58)
- Introduction to R.M.S. Values (9:47)
- Understanding the Need for R.M.S. Voltage Values (9:10)
- Calculating R.M.S. and Peak Voltages (7:17)
- Average Values & Bridge Rectifiers Introduced (8:22)
- Calculating Average Voltages (7:52)
- Conversions... Practice, Practice, Practice (6:47)
- Resistive Loads- Voltage/Current Relationships (11:52)
- Summary (7:22)
UNIT #15- QUIZ
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UNIT #16- INDUCTANCE IN AC CIRCUITS
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- Intro to Inductance (6:44)
- Review of the Effects of Magnetism and Electricity (4:58)
- Basic Characteristics of Induction Introduced (11:55)
- Characteristics (Continued) (9:01)
- Understanding the Effects of the Expanding/Collapsing Magnetic Field (8:26)
- "The" Video... Yes, We Will Watch It now (7:05)
- The Collapsing Magnetic Field (10:33)
- What is Inductance? (10:05)
- What are the Factors of Inductance? (9:20)
- Understanding Why Inductance Changes Based on Physical Characteristics of the Coil (10:34)
- Summary of Inductance (3:17)
- Inductive Reactance Introduced (10:18)
- What Causes Inductive Reactance to Change? (9:48)
- Recap on Inductive Reactance (7:49)
- Series and Parallel Circuits Rule REVIEW (10:22)
- Solving for Total Inductance (10:46)
- Voltage and Current Relationships in a Purely Inductive Circuit (7:26)
- Power in and Inductive Circuit (6:13)
- Reactive Power- VARS(L) (7:14)
- Practice Formulas (11:38)
- Review (8:37)
- BONUS MATH (7:02)
UNIT #16- QUIZ
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UNIT #17- RESISTIVE-INDUCTIVE (SERIES CIRCUITS)
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- Introduction to RL Circuits (11:47)
- New Terms and Values (5:21)
- RL Series- Voltage & Current Relationship (10:05)
- What is Impedance? (14:02)
- Apparent Power (VA) Defined (11:00)
- Power Factor (PF) Introduced (7:03)
- Correction About Future Videos- Power Factor is the COSINE of Angle Theta (3:48)
- Angle Theta Defined (11:48)
- How to Solve Around a Circuit (10:19)
- Solving Around a Circuit Continued (13:30)
- Notice the Right Angle Relationships? (11:27)
- Right Angle Relationships Continued (7:33)
- Practice Problem #1 (Book problem #1) (9:50)
- Practice Problem #1 (Continued) (9:49)
- Practice Problem #2 (Problem #4 in the book) (12:38)
- Alternative Method to the Appendix (7:00)
- Practice Problem #2 (Continued) (13:06)
- Principles in Review (13:03)
- Practice Problem #3 (Problem #2 in the book) (10:24)
- Practice Problem #4 (Problem #3 in the book) (16:52)
- Review and Summary (2:49)
UNIT #17- QUIZ
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UNIT #18- RESISTIVE-INDUCTIVE (PARALLEL CIRCUITS)
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- Intro to RL Parallel Circuits (6:04)
- The Universal Rule Still Applies (3:26)
- Relationships of Resistors to Inductors... The Current (8:44)
- Example Circuit Introduced (5:02)
- Solving the Example Circuit (15:21)
- Examining the Example Circuit (7:36)
- Analyzing the "Z" in a Parallel Circuit... Why Not Product over Sum? (14:10)
- "Z" Formulas Revisted (5:51)
- How to Set Up for Word Problem (7:33)
- Practice Problem #1 (11:48)
- Practice Problem #1 (Continued) (11:57)
- Practice Problem #2 (11:01)
- Practice Problem #3 (11:35)
- Summary and Review (4:08)
UNIT #18- QUIZ
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UNIT #19- CAPACITORS
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- Overview (5:29)
- What is a Capacitor? (6:53)
- Remember the Law of Charges (8:49)
- How a Capacitor Functions (12:30)
- Video #1- Capacitors Explained (11:11)
- Video #2- In Depth View of Capacitor Function (13:30)
- Review of Capacitor Functionality (5:30)
- Understanding How a Capacitor Resists a Change of Voltage (11:48)
- C.E.M.F. --- Impressed Voltage (5:22)
- What is Capacitance? (8:33)
- Factors that Determine Capacitance (8:18)
- Factors that Determine Capacitance (Continued) (5:41)
- Dielectric Stress- What is it? (10:20)
- Dielectric Constants (4:43)
- Understanding Current Flow (9:39)
- Farads and Microfarads (11:24)
- Calculating for Total Capacitance (7:52)
- Practice- Solving for Totals (9:20)
- Charge and Discharge Rates (8:23)
- Calculating a Time Constant (9:08)
- What is Power Factor Correction? (11:41)
- Construction Types (8:49)
- VIDEO #3- Capacitor Construction (7:40)
- Capacitor Markings (9:53)
- Summary and Review (6:16)
UNIT #19- QUIZ
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UNIT #20- CAPACITANCE IN AC CIRCUITS
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- Intro & Overview (10:28)
- "Apparent" Current Flow In an AC Circuit (11:17)
- Capacitive Reactance Introduced (6:47)
- Comparison of Reactances (XC vs. XL) (9:46)
- Practice- Solving for Capacitance (C) & Capacitive Reactance (XC) (12:43)
- Relationship of Voltage & Current in a Capacitive Circuit (10:57)
- Reactive Power (VARS-C) (8:30)
- Quality (Q) and Voltage Ratings (6:37)
- Effects of Frequency in a Capacitive Circuit (13:51)
- Example Circuit- PART 1 (8:29)
- Example Circuit- PART 2 (8:56)
- Example Circuit- PART 3 (8:55)
- Example Circuit- PART 4 (8:02)
- Summary & Review (6:04)
UNIT #20- QUIZ
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UNIT #21- RESISTIVE-CAPACITIVE (SERIES CIRCUITS)
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- Intro and Overview (7:51)
- This Chapter in a Glance (9:55)
- Example Circuit- PART 1 (8:49)
- Example Circuit- PART 2 (12:45)
- Right Angle Relationships Reviewed (6:48)
- Setting up a Word Problem (8:06)
- Practice Problem 1 (11:50)
- Practice Problem 2 (11:05)
- CORRECTION ABOUT ANGLE THETA!!!! (3:38)
- Practice Problem 3- PART 1 (13:29)
- Practice Problem 3- PART 2 (3:27)
- Practice Problem 4- (13:19)
- Summary & Review (5:37)
UNIT #21- QUIZ
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UNIT #22- RESISTIVE CAPACITIVE (PARALLEL CIRCUITS)
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UNIT #22- QUIZ
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UNIT #23- RESISTIVE-INDUCTIVE-CAPACTIVE (SERIES CIRCUITS)
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- A Glance Back at Circuit Types So Far (12:48)
- Overview (5:50)
- Voltage & Current Relationships (13:58)
- Voltage & Current Relationships Summarized (4:15)
- Example Circuit #1- PART ONE (14:01)
- Example Circuit #1- PART TWO (6:12)
- Example Circuit #2- PART ONE (10:08)
- Example Circuit #2- PART TWO (6:35)
- Remember the Effects of Frequency? (8:55)
- Calculating Resonant Frequency (10:48)
- Practice Problem #1 (11:16)
- Summary & Review (8:04)
UNIT #23- QUIZ
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UNIT #24- RESISTIVE-INDUCTIVE-CAPACITIVE (PARALLEL CIRCUITS)
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- Overview of the Chapter (5:26)
- Voltage & Current Relationships (9:09)
- Example Circuit #1- PART ONE (11:41)
- Example Circuit #1- PART TWO (11:03)
- Example Circuit #2- Solving for "Z" (15:31)
- "Z" Formulas Revisted again (8:41)
- Resonance in Parallel Circuits (8:05)
- Power Factor Correction Introduced (7:22)
- Steps to Power Factor Correction Laid Out (14:55)
- Power Factor Correction- Steps Reviewed (5:45)
- Power Factor Correction- Example Circuit (10:22)
- Summary and Review of Chapter 24 (3:38)
- A Final Word (5:48)
UNIT #24- QUIZ
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Hi, My Name is Adam Lee
I am a master electrician in the state of Maine and the director of Education at the Maine Electrical Institute. I look forward to having you join us in this course as we discover the nature of AC theory. Join us and together, we will master the world... ok, maybe not. But we will have a great time trying!
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