Seriously ...

Cramming might best proceed in this order:

Example problems
Previous exam solutions
Review the cheat sheet

Remember that the final is 11:30-1pm, in the usual classroom.

Exam review questions & solutions, grades

UPDATE:

Moodle grades are now current, and should reflect all homework sets, quizzes, labs, etc. Check them carefully to make sure I haven't missed anything ... you can regard these as your pre-final grades, if I haven't made any mistake.

Your total grade thusfar is 75% of your total grade, the final exam counts for the last 25%. This should be enough info to calculate what you need on the final exam to get a particular grade :-)

Keep in mind: I follow a 90/80/70/60 scale for A/B/C/D. Plus and minus grades come at 2.5 point increments. I always round up - so 89.001% rounds up to 90%, for an A-.
--------
Partial solutions to the exam review questions are here.

I'll be posting updated solutions, and probably some more example questions, some time tonight.

I will also be updating your grades on moodle tonight ... once that is done, it should include everything except the final. I'll post again when that is done, and how you can estimate what grade you need on the final ...

Today's exercise

Today you will build a motor, with nothing more than a battery, some bits of wire, a deck screw, and a little magnet.

Next Homework ...

Here is the next homework set, due on 13 Oct (one week from now). We'll go over a few of these on Wednesday in class to get you started.

While we're at it, here are the solutions to today's exercises. Hopefully I'll be able to get HW5 solutions up in the next few days.

Solution to today's ciruit exercises

Here you go. Includes an example of how to use Cramer's rule ...

Today's exercise

Some problems on circuits. Practice makes perfect.

Wednesday we'll go about wiring up some more complicated and useful circuits.

Sample exam 1 questions ...

... are here. As you can see, they are based on problems you have already seen, and the actual exam will look similar to these questions.

On the real exam, there will be 15-18 questions.

I will put out a key for these soon, and probably add a few more (there should be more on Gauss' law, certainly).

Quiz, Exercise, and Homework solutions

Excepting the java applets we did, the solutions to all exercises, quizzes, and homework sets are now up. The easiest thing to do is start here and root around a bit. I tried to make the naming and hierarchy as obvious as possible.

I will try to update Moodle tomorrow so all of your grades to date are online, and will also try to post some example exam questions. I realize you have no good reason to believe me thus far, but the exam questions will really not be that bad ;-)

Finally, note the syllabus here, which tells you how much everything is worth.

Today's exercise

Current and resistance. Print one per group, you can put all group members' names on it.

Exercise III solution

Here is the solution to the exercise we did on Monday. It is worth a read, I think, even if you solved all of them correctly - I added a few things here and there

Yesterday's exercise / extra credit

Just a reminder: the fourth problem from yesterday's exercise (see previous post) is extra credit, worth 1/10 of a homework set. Bring it on Wednesday or email it to me.

As super-double-extra-credit, worth an additional 1/10 of a homework set, show that integrating the surface charge density over the whole plate gives you -q. I suggest once you find the density as a function of lateral position on the plate, integrating the area in polar coordinates, over r(dr)(dtheta), where r would be the distance along the plate.

Also, I'll be around my Bevill office until about 1:30 today if you have homework or other questions. Feel free to drop by.

Wednesday's class

First, we will discuss Electric Flux and Gauss' law (Ch. 24) for a while ... including a look at the current homework set.

At least the first two homework problems on the homework will require a bit of sneakiness involving Gauss' law. The third ... well ... you should already know how to go about it at least. I strongly suggest the energy minimization approach, which I will outline for you. By the end of the day, we should have covered most of Ch. 24, and you should have a good head start on the homework.

Then, we will explore what we learned about Gauss' law with some applets.

Today's activity

Today, we will run some small applets to get a feel for electric forces & fields.

This link should bring you directly to the applets. The username and password will be given in class.