Homework Statement
Imagine a box of unknown length with the only visible photons emitted have 620nm and 443nm. Identify the transitions and find the length of the box.
Homework Equations
wavelength = (8mc2L2)/(hc(ni2 - nf2)
The Attempt at a Solution
So I assume that I need to do is...
Homework Statement
From this circuit diagram assume Vs and R1 through R2 are known.
Find the following:
a) How many unknown currents are there?
b) How many independent equations can be written using KCL?
c) How many independent equations can be derived from KVL equations...
Homework Statement
An uncharged spherical thin metallic shell has a point charge q at its center. Find expressions for the electric field
Inside the shell
Outside the shell
has the shell any effect on the field due to q?
has the presence of q any effect on the shell?
if a second point charge...
Ok so would the overall be a factor of 1/4.
Another thing is that we gave the charge to just ONE plate, so wouldn't that charge -Q stay on that one plate and polarize the other plate to +Q on the inside of the plate?
Homework Statement
Assume we have two neutral plates a small distance away from each other. We place charge Q on one plate, leaving the other plate uncharged. We then measure a potential difference V across the plates. Some bright student notes the ratio of Q and V is not the value of the...