Recent content by DeltaX

Does the op amp need to be powered and grounded ? from the google image, I don't see that Thanks

Hello everybody, I am trying to measure the light intensity of light going through a plexiglass (U Shaped) in a fish tank using led. I would love to see accurate voltage measurements due to the change in the liquid level. I tried photodetecr transistors; it wasn't accurate at all. I am thinking...

Thanks for the help. But I always been thinking we assumed its C1.XY We know there has to be multiplication but why in this form, it can be X/Y , Y^-1 . X ,... I was lookin at this problem and had some problem, would you guys please help ? I Just worked it tru. Never mind :)

In the figure,. The corner surface along the x and y-axis is held at potential of 0 Volts, and the hyperbolic surface y=1/x is held at potential of +4 Volts. The surfaces extend from –infinity < z < +infinity (out the paper) and extend towards infinity in the x and y directions, but the positive...

would you show me how to find the capacitance per meter for this following geometry. My prof mentioned it but didnt talk much about it, he insisted that we do some reading on our own

To make good dielectric it should be a poor conductor of electricity, but an efficient supporter of electrostatic fields and metals have high conductivity casue metals possesses charges that are free to move about the material as conduction currents.

If a material has a large permittivity, with it also follow that it will have a large conductivity ? Why or Why not ? I think the higher the value of the permittivity, the less conductance How I can justify that by physical insight means in general , if my above statement is true? Thanks

Thanks very much. I understood measuring the B Field About Electric Energy Density, I talked with my professor and he didnt give me clear full answer. He said it takes more energy to construct sold sphere of charge. Becasue we are doing work to push charges to the origin. Less energy for...

Thanks very much for helping me. For the 2nd question, My professor stated that I need to figure to think of terms of (Energy Density = 0.5*D field . E field) to back it up mathematically. For the 3rd question, I just wanted to know how how to undo the cross product. What velocity should I...

Electromagnetic Questions :) Hello everybody. I have some questions that puzzled me in Electromagnetics. I tried to answer them all , some my answers make sene some not. I hope someone hear can help . Q)If a material has a large permittivity, with it also follow that it will have a...