# AT Cycle 32

## 3/22 - 3/27

W 3/22

Th 3/23

F 3/24

M 3/27

### 🔴 2: Th 3/23a, 🟡 4: W 3/22 - LR Circuits (1)

Daily check-in: LR Circuits

Today, after a check-in, we'll try some AP problems involving LR circuits.  We'll remember what happens to inductors at t=0 and t=∞.  We'll also calculate the energy stored in an inductor.  We'll talk about HOW energy is stored in the inductor.

Required:  1998E2, 2008E2
Optional Enrichment:  1988E3a, 2019aE2, 2019aE3

The optional enrichment problems are not all about induction, but they show how induction can be just part of a problem.  With any time remaining, find other AP problems to practice for your induction exam Tuesday.

Homework:  Upload solutions to the two required AP problems to ✏️ Google Classroom by Friday at 10pm.  Induction Exam on Monday, March 27th.

### 🟥 2: Th 3/23b, 🟨 4: Th 3/23 - LR Circuits (2)

Quiz Today on all of Faraday's Law!

Today, we'll continue working on some AP problems involving LR circuits.  We'll remember what happens to inductors at t=0 and t=∞.  We'll also calculate the energy stored in an inductor.  We'll talk about HOW energy is stored in the inductor.

Required:  1998E2, 2008E2
Optional Enrichment:  1988E3a, 2019aE2, 2019aE3

The optional enrichment problems are not all about induction, but they show how induction can be just part of a problem.  With any time remaining, find other AP problems to practice for your induction exam Tuesday.

Homework:  Upload solutions to the two required AP problems to ✏️ Google Classroom by Friday at 10pm.  Make sure you've completed all required problems up to this point.   Induction Exam on Monday, March 27th.

If you need any help with inductor problems, check out this basic problem:

For a more complex example problem, watch the following (inductor starts around 3:38):

### ❤️ 2: F 3/24, 💛 4: M 3/27a - Maxwell's equations

Today, we'll look at how Maxwell brought everything about electric and magnetic fields together in what we now call "Maxwell's Equations."

Then, if there's time, we'll do some practice problems collaboratively during class:

Optional Enrichment:  1988E3a, 2019aE2, 2019aE3

These problems are not all about induction, but they show how induction can be just part of a problem.  With any time remaining, find other AP problems to practice for your induction exam next class.

HomeworkInduction Exam next class - Monday, March 27th.

### 📕❗ 2: M 3/27, 📒❗ 4: M 3/27b - induction assessment

Induction Exam on Tuesday, March 29th.

Homework:  Be ready - we're gonna go fast through our next unit!  Try as best as you can to keep up and don't fall behind.  Feel free to work ahead.

Watch the following video on simple harmonic motion (SHM):

Check out this video for a better understanding of "angular frequency" ω  (aka frequency of oscillation) and how it relates to the angular speed ω   we already studied in rotation: