Tagged Questions
0
votes
0answers
73 views
Superconductors for sale? [closed]
Does anyone know where I can purchase superconductors for a school presentation? I don't need a whole kit, just the disk itself. Thanks.
1
vote
5answers
526 views
Parallel circuits - Overall resistance decreases with additional resistor
Let's say that there is a parallel circuit with two identical resistors in parallel with each other. If a third resistor, identical to the other two, is added in parallel with the first two, the ...
0
votes
1answer
308 views
Inductance - Sign convention problem…
My problem is with a circuit containing a resistor of suitable resistance $R$ and a solenoid.
At time $t<0$, there was a battery that created a current in the circuit and at $t=0$, the battery is ...
3
votes
1answer
244 views
Enhance a home build spectrometer
I would like to build a home made spectrometer like it's describing here:
http://coolcosmos.ipac.caltech.edu/cosmic_games/spectra/makeGrating.htm
How can I improve this spectrometer? A prism from an ...
0
votes
1answer
123 views
What could I test for in a guillotine? [closed]
I'm doing a school assignment project and I need to investigate something of my choice. I was thinking of doing something about how the height and angle the blade of a guillotine is dropped from ...
2
votes
1answer
290 views
How to set up a very simple experiment in optics?
This might come across as a very rudimentary question.
My fundamentals of Optics are weak. In the optics chapter of my physics text book I saw diagrams each depicting an object on the left and a lens ...
