Lecture (L1-3) Circuit Elements
- Due Aug 22, 2024 by 11am
- Points None
Today we are going to start talking about circuits and how we represent them. We'll start with NODES. These are the connection points within the circuit. And they aren't just points. They are like connection zones. The second major concept is VOLTAGE, and how it shows up in the circuit. There are NODE VOLTAGES and VOLTAGE DIFFERENCES. It's all about how you measure the voltage. And finally, we will talk about SERIES and PARALLEL circuit elements. These are important concepts that define how voltages and currents will move within the circuit, and we'll use them throughout the semester. When you first learn about these concepts, they may seem strange and difficult to conceptualize. But don't worry. We'll be coming back to them again and again, which should help you get comfortable with them by the end of the semester.
Tech Briefing from an old version of the textbook. Tech Briefing: How big is big? Download Tech Briefing: How big is big?
Question of the Day / Learning Objectives
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What is a node?
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How can you tell if circuit elements are in series or parallel?
Readings and Reference Material
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Textbook Links to an external site. Section: Chapter 1-3
Reference Material:
- Cookbook on nodes/series/parallel: Cookbook (node,series,parallel).docx Download Cookbook (node,series,parallel).docx
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Circ:Configuration: Identifying nodes (Links to an external site.)
Circ:Configuration: Identifying branches (Links to an external site.)
- Application of the Day: Electrical Safety and if we get time Application (& Extra Credit): Lightning
Pre-Class Video Lecture (Watch Before Class)
Watch these lectures before class, and take notes on the Questions of the Day.
Powerpoint to take notes on: L(1-3)B -- circuit representation with notes.ppt
Download L(1-3)B -- circuit representation with notes.ppt
1. Introduction to how we represent circuits
https://youtu.be/sYN6icPhdMc Links to an external site.2. How to tell if things are in series or parallel
(Links to an external site.)Self-Assessment: ECE1250_Assess1_3.pdf Download ECE1250_Assess1_3.pdf
Extra Examples
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(Links to an external site.)Batteries in series and parallel
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https://youtu.be/jfTlQPi7ccM (Links to an external site.) Links to an external site.
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Example: Problem 1-26 adapted:
Part 1.
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(Links to an external site.)Part 2.
http://youtu.be/i46N51d39Wc (Links to an external site.) Links to an external site.
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In Class
1. Bring your notes from the Questions of the Day with you.
2. Slides we'll cover L(1-3&4 in class) -- circuit representation & charge,current.ppt Download L(1-3&4 in class) -- circuit representation & charge,current.ppt
3. Examples & Start of Homework: InClass 1-3&4 Worksheet.docx Download InClass 1-3&4 Worksheet.docx
Where to find solutions to homework problems? See Files > homework solutions
5. Application: Application (& Extra Credit): Lightning and Electrical Safety
Homework & Extra Credit
Comprehension Quiz