# AT Cycle 22

## 1/22 - 1/25

M 1/22

T 1/23

W 1/24

Th 1/25

### 🔴 2: T 1/23a, 🟡 4: M 1/22, 🔵7: M 1/22 - mystery capacitor lab (1)

Today, we will finish the one-farad capacitor lab, and I will verbally assess your understanding of the analysis.

Safety Precautions:

Then we'll do one problem to check for understanding.

Required:  2007E1  (do before quiz, but submit with first problem set next week)

HandoutMystery Capacitor Lab

HomeworkQuiz on equivalent resistance (combo circuits) & Kirchhoff's Laws next class - Tuesday, January 23rd!  If you have not done so yet, finish pages 1-2 of Mystery Capacitor Lab and plan out how you're going to conduct the next part of the experiment outlined on page 3.  Read sections 27-3 & 27-4 in your textbook if you have not already done so.  Finish your lab and the above AP problem if you did not in class.  If you still don't know the physical significance of the time constant "RC", look it up!  It's important!  Watch the video on Dielectrics in Capacitors below, although it should be review of what we have already talked about in class, so at least skip through it.

### 🟥❗ 2: T 1/23b, 🟨❗ 4: T 1/23, 🟦❗ 7: T 1/23a - mystery capacitor lab (2)

Quiz on equivalent resistance (combo circuits) & Kirchhoff's Laws TODAY!

Finish the Mystery Capacitor Lab this class and hand in your packet by the end of the period.

Then we'll do one problem to check for understanding.

Required:  2007E1 (to do before quiz,  submit with first problem set next week)

Homework:  Read sections 27-3 & 27-4 in your textbook if you have not already done so.  Finish your lab and the above AP problem if you did not in class.  If you still don't know the physical significance of the time constant "RC", look it up!  It's important!  QUIZ Tuesday, January 23rd on derivation of charging and discharging equations.

### ❤️ 2: W 1/24, 💛 4: Th 1/25a, 💙7: T 1/23b - RC circuits problems (1)

Today, to check your understanding of the previous mystery capacitor lab, do the following problems:
Required 1:  2007E1, 2013E2, and Chapter 27 #59 & 60.

If you need a refresher on how and why we linearize graphs for 2013E2, look at this basic guide on determining relationships from graphs.  This packet will not give you the exact function that you'll need, but if you think about the principles here, you can figure out how to linearize 2013E2

Then, rather than focusing on how capacitors charge and discharge over time, we'll think about what happens immediately after the switch is closed and a long time after the switch is closed.  For additional support, watch the following 3 videos.

Remember that an uncharged capacitor acts like a wire and a fully charged capacitor acts like an open circuit.  Then think about using Kirchhoff's Loop Rule to solve the rest.

HomeworkQUIZ Monday, January 29rd on derivation of charging and discharging equations.  Upload pictures of your solutions the four problems above in ✏️ Google Classroom by Friday, January 26th at 10pm.

### 📕 2: Th 1/25, 📒 4: Th 1/25b, 📘7: W 1/24 - RC circuits problems (2)

Today, we'll work on a few AP problems involving RC circuits.  If you haven't finished the problems from the above post on the process of charging and discharging capacitors, finish them first:

Required 1:  2007E1, 2013E2, and Chapter 27 #59 & 60.

If you need a refresher on how and why we linearize graphs for 2013E2, look at this basic guide on determining relationships from graphs.  This packet will not give you the exact function that you'll need, but if you think about the principles here, you can figure out how to linearize 2013E2

Then work on the following problems.  These are learning problems, so we will be learning and deepening our understanding of capacitors while we do problems.

Required 2:  Ch 27 #61, 63, 65, 67, 79, 80, 2006E2, 1996E2, 2010E2
Enrichment: Ch 27 #66, 69

We will continue these problems next hour.

HomeworkQUIZ Monday, January 29rd on derivation of charging and discharging equations.  Upload PDF of your solutions the four required 1 problems above in ✏️ Google Classroom by Friday, January 26th at 10pm.  Upload PDF of your solutions the above required 2 problems in ✏️ Google Classroom by Monday, January 29th at 10pm.  Watch the video on Dielectrics in Capacitors below: