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NUS: Circuits for Beginners


This course introduces DC (direct current) circuits and is typically the first course an undergraduate student in electrical engineering would take. We learn about voltage, current, and power, while building and analyzing progressively more complex circuits. We also learn about typical electrical test equipment; this course is not merely a “whiteboard-style” course, but we actually build and measure a number of real circuits.

About this course

We start from the very beginning in electronics. What is voltage? What does it physically mean? What is current? What happens in a circuit and how can things like power consumption be calculated?

In this course we learn how to analyze circuits through a variety of methods, including the Kirchoff voltage and current laws, superposition, Node Voltage Analysis, Thevenin’s Theorem and concepts such as impedance matching and maximum power transfer. These are useful to predict the performance of circuits.

We look at various types of equipment used for electrical circuit measurements, including power supplies, multimeters, oscilloscopes, and function generators. At the end of the course, students will be able to use resistors, capacitors, inductors, diodes, and batteries in circuits as well as analyse and design circuits containing these components. One of the circuits built in the course is a light sensing circuit.

What you'll learn

  1. What is voltage?
  2. What is current?
  3. What is power?
  4. How are these calculated?
  5. Circuit analysis methods
  6. Electrical measurement equipment
  7. How to calculate voltage, current, and power
  8. How to use resistors, capacitors, inductors, diodes in circuits
  9. Impedance matching
  10. How to transfer maximum power in a circuit
  11. How to choose components (power ratings)

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