Reminder: Magnetism Practice Documents have been available, posted since December 27. See the posting from December 27 that originally said "Due Jan 3". (You might have to select "Show all assignments" to see it.) There is a LOT of practice in that posting to solidify Chapter 19 - with answer keys available. The practice documents have the following names, (but I don't need to tell you, because you got the documents on your own, right?): "Field Comprehension Check - 3 Basic Sources", "Diagnostic Definition Comprehension Quiz", "B2000 #7 Quiz".
The one called "Diagnostic Definition Comprehension Quiz" has its key in the same file as the original questions.
These cover a lot of good things, and why stop there. You know the Study Guide has even more questions from out of the book, and I posted a file with all the even answers from Chapter 19 book practice that I had placed on the Study Guide. So I hope each person uses what I gave.
Here is one more for you. "Wire on Wire". I said in class I'd give this to you to supplement the activity in class where a wire running current magnetically attracted or repelled a second wire also flowing current.
(By the way, Wire on Wire is the key analysis that proves why magnetic poles are NOT fundamental.)
The Practice Quiz entitled "Field Comprehension Check - 3 Basic Sources", asks questions about the strength of field inside the solenoid. Did you think that was unknowable or optional just because I didn't state it in class? That would be an untrue statement. Did you read Chapter 19 as instructed until you knew the meaning of the formula for the magnetic field inside a solenoid, and how to use that formula. (The text has good pictures; it makes it clear, and you know what a solenoid looks like, because you used them in my room.) In my experience, a minority of people become aware of the meaning of this particular solenoid formula even when directly instructed to find out about it, and I know that this is because a minority of people read with sufficient depth, physically defining every symbol without exception. It's your job to be outside of this unfortunate norm. FYI: my lab solenoids have 540 circles (AKA turns) of wire fit into a column that's 15 cm tall.
Summation: yes, I did assign knowing the solenoid, because I said to read Chapter 19. I could tell you the page it's on right now, but I won't, because everyone can read.
About "Velocity Selector Lecture Problem": That was a cool little practice quiz also posted on December 27 (and re-attached here). I've attached some things to this posting for that:
1) The key to Velocity Selector Lecture Problem BUT don't necessarily open the key if you didn't know what to do on "Velocity Selector Lecture Problem". How come? See #2.
2) Remember in class one day when I gave you the multipage document called "Velocity Selector Solution Breakdown"? Well, I did. This is a long discussion that talks about every possible important thing that in the end shows how simple the Velocity Selector's final solution is. Anyway, you were already given that file, and it's re-attached to this post. It reviews electricity as well as magnetism.