Recent content by Sesse

I am trying to understand why it is not possible to produce an EM wave through interference that is completely different from the source waves. For example why can't 2 or more EM waves outside the visible spectrum add up to produce light? I haven't had any physics since high school and I don't...

I have got this circuit. http://img225.imageshack.us/img225/4369/circuithf1.jpg Threshold voltage of the n-channel MOSFET is 2Volts. RVAR varies from 0.5k\Omega to 2k\Omega. When I simulate the circuit, I get: http://img132.imageshack.us/img132/2779/simulationuw4.jpg It should go into...

I think he means a line that connects B to A. In that case, from what I understand you know the length of CB(given) and CA(radius of the circle). You know the angle CBA(given) as well. Using law of cosines, you can find the length of the other side, BA. Then using law of cosines again, you...

I am trying to understand the derivation of the divergence formula in cylindrical coordinates. www.csupomona.edu/~ajm/materials/delcyl.pdf paper does a good job of explaining it but I don't understand 2 things that the author does. \frac{\partial\hat{\rho}}{\partial\phi} = \hat{\phi} and...

*opps fixing the latex code* I have a test coming up so I tried solving some review questions but couldn't solve all of them. I will also post the ones which I am not sure whether they are correct or wrong so please spare some time to check them too. :smile: 1. F(x)= \left{ \begin{array}{cc}...