Embedded Files
🔴❗2: Th 12/18, 🟡❗4: Th 12/18a, 🔵❗7: Th 12/18 - Gauss's Law assessment
🔴❗2: Th 12/18, 🟡❗4: Th 12/18a, 🔵❗7: Th 12/18 - Gauss's Law assessment
Quiz on Gauss's Law Today! With any time remaining, you may work on any problems you have not finished this unit.
Homework: Finish any of the required potential energy and potential problems. Assessment on Electrostatics on Friday, January 9th. Check out the Circuits Review Videos in preparation for the next unit which we will start the first week of January.
🟥 2: F 12/19a, 🟨 4: Th 12/18b, 🟦 7: F 12/19a - equipotential lines lab
🟥 2: F 12/19a, 🟨 4: Th 12/18b, 🟦 7: F 12/19a - equipotential lines lab
Today, we'll learn how to draw equipotential lines with a lab. Then, we'll do 2005E1 and make sure that you understand the relationship between equipotential lines and electric field lines.
Homework: The equipotential lab is due next class. Make sure you've tried 2005E1. Assessment on Electrostatics on Friday, January 9th. Normally, I would give this assessment in the next class period, but because of the no homework break, I have to postpone it till the first Friday in January. We will start the circuits unit Monday, January 5th. Check out the Circuits Review Videos in preparation for the next unit which we will start the day we get back from break.
Then, THINK ABOUT THIS: If you can calculate V by integrating E, can't you find E by taking the derivative of V? Kind of, but the problem is that E is a vector, so how do we get a vector from a scalar? First, for a conceptual explanation, check out the video below. Then, read section 24-6 on page 701-702 in your textbook, and work through Sample Problem 24.05. For some good practice, you may want to derive the expression for the electric potential at any point on the central axis of a uniformly charged disk. Additionally, make sure to think about why Ex and Ey are zero. Using the gradient method E=-∇V is a cool different way of finding the electric field. In a lot of ways it's easier than the electric field integral, since you don't have to ever deal with component geometry. Check it out in this video:
❤️ 2: F 12/19b, 💛 4: M 12/22, 💙 7: F 12/19b - electric field gradient
❤️ 2: F 12/19b, 💛 4: M 12/22, 💙 7: F 12/19b - electric field gradient
Today, we'll review the concept of a contour map in hiking and relate that to getting the electric field with the gradient of the potential E=-∇V . We'll do an example together.
With any remaining time, try finding some AP practice problems. (See Google Classroom.)
Homework: Assessment on Electrostatics on Friday, January 9th. Normally, I would give this assessment in the next class period, but because of the no homework break, I have to postpone it till the first Friday in January. We will start the circuits unit Monday, January 5th. Check out the Circuits Review Videos in preparation for the next unit which we will start the day we get back from break.
📕 2: M 12/22, 📒 4: Th 12/23*, 📘 7: Th 12/23* - electrostatics review
📕 2: M 12/22, 📒 4: Th 12/23*, 📘 7: Th 12/23* - electrostatics review
Spend the period studying for the exam. Take the time to ask questions, catch up on any required problems you have not yet completed, and collaborate to solve additional problems.
Homework: None. ❄️⛄❄️ ENJOY YOUR BREAK!!! ❄️⛄❄️
Assessment on Electrostatics on Friday, January 9th. Normally, I would give this assessment in the next class period, but because of the no homework break, I have to postpone it till the first Friday in January. We will start the circuits unit Monday, January 5th. Check out the Circuits Review Videos in preparation for the next unit which we will start the day we get back from break.
To think about the whole unit, here are the topics in electrostatics we have studied:
Coulomb's Law
Finding electric field
E = F/q
electric field integral (superposition of dq)
Gauss's Law
Electric potential energy of a configuration of charges
Finding electric potential
potential integral (superposition of dq)
Path integral if we know electric field (compatible with Gauss's Law)
Calculating field and potential due to non-uniform charge distributions (integrals)
You may watch a review video here:
Page updated
Google Sites
Report abuse