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🟢 8: W 5/13🌰 - 📖 motional emf
🟢 8: W 5/13🌰 - 📖 motional emf
Then, we'll take a look at a moving bar in a magnetic field which will produce a motional emf. Using what we learned last time about Faraday's Law, we'll derive an equation that can help you understand this relationship. (Faraday's Law, ε = -N ΔΦ/Δt and I = ε/R (Ohm's Law)). Watch the video.
Then, we'll practice motional emf problems by doing problem solving.
Homework: Unit Assessment on all of Magnetism & Induction TBD!
Optional Extra Practice: 📖 Mastering Physics "Ch 25 - motional emf" problems #C3, C18, 4, 7, 62, 65. Read any sections in chapter 25.1-3 that seem unclear. Then do at least #11-12 of page 2 of FYP: Electromagnetism (ANSWERS). The video will help you with these two problems.
🟩❗8: Th 5/14🌰 - problem solving
🟩❗8: Th 5/14🌰 - problem solving
Today, we'll take some time to catch up on any magnetism and induction problem solving.
Homework: Catch up on problem solving to this point.
💚 8: F 5/15🌰 - 📄 transformers
💚 8: F 5/15🌰 - 📄 transformers
Today, we'll see how transformers work and how they can be useful. We'll use Faraday's Law of Induction to derive the relationships between primary/secondary numbers of coils, voltage, and current in ideal transformers. (Know the ideal transformer equation.)
Watch this video on how transformers work:
You can check out this demo to see a transformer in action:
Then, we'll practice ideal transformer problems by doing page 1 only of 📄 Transformers WS (PH).
Presentation: Electromagnetic Induction Presentation continued
Homework: Complete page 1 only of 📄 Transformers WS (PH) and finish the above
Optional Extra Practice: Another transformer video. Do page 2 of FYP: Electromagnetism (ANSWERS). Section 26.2 in your textbook 📖 Mastering Physics "Ch26 - transformers" problems #9, 11, 12.
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