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Waves - AEC
Questions (7)
A small dipole of length l with an input current Io radiates an electromagnetic wave that is TEM respect r with an electric
1 answer
522 views
A plane wave propagating along the positive z axis in vacuum is polarized along the y axis at a frequency of 3 GHz. Write the
2 answers
609 views
A small dipole of length l with an input current Io radiates an electromagnetic wave that is TEM respect r with an electric
2 answers
429 views
The solar radiation incident on the Earth has a power density of approximately 900W/m2. Find the rms value of the electric
3 answers
677 views
A plane wave propagating along the positive z axis in vacuum is polarized along the y axis at a frequency of 3 GHz. Write the
2 answers
465 views
Show that in a parallel plate capacitor the stored electric energy is Ue=C*(V^2)/2 where C is the capacity and V the voltage.
2 answers
550 views
I have the following exercise:
Verify that Ex=f(z-ct)+g(z+ct) is a solution of the one dimensional wave equation. But I don't get
6 answers
1,191 views
Answers (14)
Alright in this case it is true, I can define it, but in my other question, where I have the coordinates in polar, how can I change everything to cartisian?
But here, if the coordinates are in a polar way, how can I change them to cartisians?
Thanks.
I'm having trouble determining its directions, how can I find them? You are so useful man, you can't imagine how grateful I am. Thanks.
I think so, but the thing that blows my mind is, if it were x direction, then I would change it to y (from theory). But if it goes to the θ direction, how can I change it to direction? I mean which direction will it be? And the Poynting vector, would be a
It is answer 1.
Update: I have tried to do: Pd = E^2 / Zo = E^2 /120pi E^2 = Pd * 120pi E = squareroot(900 * 120pi) = 582.48 V Would this be correct?
1. 2 = (-13 * -7) - 89
The cylinder one. Vcylinder = pi*r^2*h = pi * 4^2 *12 = 192*pi cm^3 Vcone = 1/3 * pi * r^2 * h = 1/3 * pi * 5^2 * 6 = 50*pi cm^3
:( I could really use some assistance better than the provided from a input field of HTML xD, and my questions usually have symbols that require more precision in order for me to understand them. Is there nothing we can do?
Bobpursley coudl I get an email from you? I need to ask you something.
3.5x-1.25x=2.25x. And the -25 stays the same
Lol no, it is A
f(x)=3.5x-1.25x-25
