AT Cycle 31

🔴❗ 1: T 3/16, 🟡❗ 3: T 3/16a motional emf problems

Quiz on Induction Review TODAY - Faraday's Law & Lenz's Law.

After the quiz, finish the motional emf problems from Halliday Chapter 30:

Required: 33, 34, 35

Then, we'll work on some more problems. Work on the following AP problems involving Faraday's Law:

Required: 1981E3, 1989E2, 1994E2, 2009E3, 1992E3 [TYPO in 1992E3: I=α(1-βt)]

🟥 1: W* 3/17, 🟨 3: T 3/16b Faraday's Law AP Problems (1)

Today, continue working on the following AP problems involving Faraday's Law:

Required: 1981E3, 1989E2, 1994E2, 2009E3, 1992E3 [TYPO in 1992E3: I=α(1-βt)]

Homework: Watch the following videos on the electric field induced by a changing magnetic field. Before watching though, think about the following situation. So we know by F = qv x B that a MOVING charge in a magnetic field feels on a force and can be made to move. Let's say we have a loop sitting in a constant magnetic field at first. The charges sitting in the loop are not moving - even though these charges are in a magnetic field, there are no forces on the charges because their velocity is zero. But as soon as we try to change that magnetic field, all of a sudden, the charges start to move - a current is induced. That implies that there is a FORCE on those charges causing them to accelerate from REST. Where does that force come from? Can it be a magnetic force dictated by F = qv x B? If not, what kind of force is it? Seriously think about these questions! Now watch the videos.

❤️ 1: Th 3/18a, 💛 3: Th 3/18 Faraday's Law AP Problems (2)

Today, finish working on the following AP problems involving Faraday's Law:

Required: 1981E3, 1989E2, 1994E2, 2009E3, 1992E3 [TYPO in 1992E3: I=α(1-βt)]

Then, if you finish all of these AP problems, we'll do some practice problems using the "general form of Faraday's Law."

Required: 1985E3, 1996E3, 1999E2

📕 1: Th 3/18b, 📒 3: F 3/19 general form of Faraday's Law (1)

Today, we'll start with a brief discussion about the general form of Faraday's Law.

Then, we'll continue doing some practice problems using the "general form of Faraday's Law."

Required: 1985E3, 1996E3, 1999E2

Homework: Upload all solutions to first 5 AP problems to ✏️ Google Classroom by Friday, March 19th at 10pm. Quiz Wednesday, March 24th on Faraday's Law! Watch the following video on transformers first, and then read the "Transformer: Basic Principles" section from Wikipedia to understand the derivation of the ideal transformer equation. You must be able to apply the "ideal transformer equation" with which you should already be familiar from last year.