Umat GL 151 beginner

GL 151: Applied electricity

Free study notes for GL 151 (GL151) — Applied electricity at Umat, one topic at a time, each with worked examples and a practice quiz.

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Course Syllabus

  1. Fundamentals of Electricity and Circuit Components
  2. DC Circuit Analysis Techniques
  3. Magnetism and Electromagnetism
  4. Alternating Current (AC) Fundamentals
  5. AC Circuit Analysis
  6. Basic Electrical Measurements and Safety

Study Notes

DC Circuit Analysis Techniques

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When you're faced with a DC circuit, your goal is usually to find specific voltages or currents. Simple circuits can often be solved with Ohm's Law and series/parallel resistor combinations, but complex ones need more advanced techniques.

These two laws are the bedrock of all circuit analysis:

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Magnetism and Electromagnetism

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Magnets are materials that produce a magnetic field. This field is an area around the magnet where magnetic forces can be felt. You can't see it, but you can see its effects (like paperclips jumping to a magnet). Every magnet has two poles: a North pole and a South pole.

Here's how they behave:
* Opposite poles attract: North attracts South.
* Like poles repel: North repels North, and South repels South.

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Basic Electrical Measurements and Safety

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  • Voltage (V): This is the electrical potential difference between two points in a circuit. It's like the "push" that makes electrons move. We measure it in volts.
  • Current (I): This is the flow rate of electric charge (electrons) past a point in a circuit. It's like how many electrons are moving per second. We measure it in amperes (amps).
  • Resistance (R): This is the opposition to the flow of electric current. It's like how hard it is for electrons to move through a material. We measure it in ohms (Ω).
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GL 151: common questions

What does GL 151 cover?

This GL 151 study guide covers 6 topics: Fundamentals of Electricity and Circuit Components, DC Circuit Analysis Techniques, Magnetism and Electromagnetism, Alternating Current (AC) Fundamentals, AC Circuit Analysis, Basic Electrical Measurements and Safety.

Are these GL 151 notes free?

Yes. Every GL 151 note on this page is free to read without an account. A free account adds practice quizzes, flashcards and a revision plan.

How do I revise for my GL 151 exam?

Read the GL 151 note for each topic, then take its practice quiz: the questions you get wrong come back as flashcards until you know them. Save the course to get a revision plan built around your exam date.