## About Course

This course will cover the basic concepts of alternating current (AC), basic trigonometry, and resistance in electrical circuits. Students will learn about the characteristics of AC and how to calculate its frequency and voltage, the fundamentals of trigonometry, and how to apply it in AC circuits. They will also learn about the factors affecting resistance in electrical circuits and how to calculate resistance using Ohm’s law.

Course Objectives: Upon completion of this course, students will be able to:

- Describe the characteristics of alternating current (AC)
- Calculate the frequency and voltage of AC
- Understand the basics of trigonometry and apply it in AC circuits
- Describe the factors affecting resistance in electrical circuits
- Calculate resistance using Ohm’s law

Course Outline:

I. Alternating Current (AC)

- Introduction to AC
- Characteristics of AC
- Calculation of AC frequency and voltage
- AC power and its measurement

II. Basic Trigonometry

- Introduction to trigonometry
- Trigonometric functions (sine, cosine, tangent)
- Calculation of phase angles in AC circuits

III. Resistance in Electrical Circuits

- Factors affecting resistance (material, temperature, length, cross-sectional area)
- Ohm’s law and its application in calculating resistance
- Series and parallel circuits and their effects on resistance

IV. AC Circuit Analysis

- AC circuit analysis using phasor diagrams
- Impedance in AC circuits (resistance, inductance, and capacitance)
- Calculation of current and voltage in AC circuits

V. AC Power

- Power factor and its importance in AC circuits
- Calculation of power in AC circuits
- Reactive power and its effect on power factor

Assessment:

- Quizzes on the fundamentals of AC, trigonometry, and resistance
- Practical assignments involving the calculation of AC frequency, voltage, and power
- Final exam covering the concepts covered in the course

Conclusion: This course provides students with a foundational understanding of alternating current (AC), basic trigonometry, and resistance in electrical circuits. By the end of the course, students will be able to calculate the frequency and voltage of AC, apply basic trigonometry in AC circuits, and calculate resistance using Ohm’s law. They will also be able to analyze AC circuits using phasor diagrams and understand the factors affecting AC power.