AT Cycle 23
1/26 - 1/31
F 1/26
M 1/29
T 1/30
W 1/31
🔴 2: M 1/29a, 🟡 4: F 1/26, 🔵7: F 1/26 - RC circuits problems (3)
Today, continue working 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
Also, after learning a little more, I would like for you to revisit the "Tricky Challenge" from the ✅ GoFormative "Capacitor Pre-Lab". There's a new assignment in ✅ GoFormative called "Capacitor Pre-Lab Revisited".
Homework: QUIZ Monday, January 29rd on derivation of charging and discharging equations. Upload pictures of your solutions the problems above (required 2) in ✏️ Google Classroom by Monday, January 29th at 10pm. ✅ GoFormative "Capacitor Pre-Lab Revisited" also due on Monday, January 29th at 10pm.
🟥❗ 2: M 1/29b, 🟨❗ 4: M 1/29, 🟦❗ 7: M 1/29a - ✏️dielectrics
QUIZ on derivation of charging and discharging equations TODAY.
Today, we'll talk about how dielectrics can increase capacitance. We'll look at the work to insert or remove a dielectric with a problem. Watch the following video for details on dielectrics. Then do problems from the Giancoli textbook Chapter 24:
Required 3: Giancoli Ch 24 Example 24-8 and Problems #56, 57, 85, 87
Here's a list of the things you should be able to do by now:
Know how to derive the charging and discharging equations (and also know what they are without doing the derivation)
Know how to get the time constant from a graph two different ways
Know what happens at t=0+ and t=∞ when charging or discharging
Derive the energy stored in capacitor equation
Know how a dielectric changes electric field, capacitance, and energy stored
Know the two different types of problems when inserting dielectrics
Derive the “CAKEd” equation
Homework: Short QUIZ on RC Circuits (marking period 3) - Tuesday, January 30th for period 7 and Wednesday, January 31st for periods 2 & 4 (marking period 3). Upload pictures of your solutions the problems above (required 3) in ✏️ Google Classroom by Wednesday, January 31st Sunday, February 4th at 10pm. If you need to review dielectrics, you may review the video below:
❤️ 2: T 1/30, 💛 4: W 1/31a, 💙7: M 1/29b - 📄internal resistance lab
Today, we'll do a lab where we explore the terms: emf, internal resistance, and terminal voltage.
Safety Precautions:
Make sure your circuit is only connected to the battery for brief (~1 second) periods of time to avoid overheating and wasting your battery.
Handouts: 📄EMF & Internal Resistance Lab
Homework: Short QUIZ on RC Circuits next class (marking period 3) - Tuesday, January 30th for period 7 and Wednesday, January 31st for periods 2 & 4. Finish the 📄EMF & Internal Resistance Lab due at the beginning of class on Friday, February 2th.
📕❗ 2: W 1/31, 📒❗ 4: W 1/31b, 📘❗ 7: T 1/30 - 📄internal resistance lab
Short QUIZ on RC Circuits TODAY (marking period 3).
Today, after the quiz, we'll continue to do the lab where we explore the terms: emf, internal resistance, and terminal voltage.
Safety Precautions:
Make sure your circuit is only connected to the battery for brief (~1 second) periods of time to avoid overheating and wasting your battery.
After finishing the lab, do textbook problems Chapter 27 #10, 14 and Giancoli Chapter 26 #1, 2, 4. Then do 2015E2 to check for your understanding. Watch the homework videos first if you prefer.
Handouts: 📄EMF & Internal Resistance Lab
Homework: LAB QUIZ on internal resistance and lab practical on Friday, February 2nd. Finish the 📄EMF & Internal Resistance Lab due at the beginning of class on Friday, February 2nd. Upload your solutions to ✏️ Google Classroom by Friday, February 2nd at 10pm.
If you have any trouble understanding the analysis, watch the following video:
Also, everyone should watch this video on maximizing the power for an external resistor: