Recent content by godiswatching_

I don’t see anything wrong with my steps. I think they are all logically sound. It’s more so that I’m paranoid and don’t want to lose points on homework for no reason really.

Hey! I had a question about this problem. I did (1) Using $$R_{0}=\rho\frac{l}{A}$$ For (2) I assume the question means that the radius increases by a meter. So I used $$\bigtriangleup L = 2\pi (r_{E}+1) - l$$ and then I used that L to find the new R. Then I said $$\bigtriangleup R = R-R_{0}$$...

It’s from a practice midterm I was trying to solve. Sadly the professor does not provide solutions. I am assuming it is somewhat important if it is in a practice test.

So what do you suggest?

So after that I just use $$B_{{\bot}_{ab}} = B_{{\bot}_{bel}}$$

Yeah so I was wondering what that would look like? $$\oint \vec H \cdot d \vec l = NI$$ $$(l+s)H_{in} + sH_{gap} = NI$$ Is that valid? s is the gap length and l is the length of the original solenoid. Then we use the same idea?

Yes it is a solid iron rod core.

why is it 2s? I am having a hard time visualizing it.

Hey, I was trying to figure out this problem. I got (a) using B = mu * NI/L but I'm not sure how to start the part about the magnetic field in the gap after the solenoid is ripped in half with 1 cm gap. Thanks for the help!

my reasoning would be that the extra 2kBT energy comes from the vibrational energy. And since vibrational energy can be quantized using h-bar*omega we can equate those two. However, I am not sure if the 2kBT comes only from vibrational or vibrational AND rotational energies. And also if the mass...

Here's a picture of what I tried. I was wondering if this is correct?