Homework Statement
A V_s=5V source, with Thevenin resistance R_s=1kΩ, drives a certain number h(fanout) gates, each of which is modeled as a C_g=100fF load. The gates are driven simultaneously (i.e., in parallel). You are given: V_OL= 1V, V_OH = 4V. Ignore the wire resistance. What is the...
Given the following statement:
"A plane wave is incident (from the free space) upon a semi-infinite medium made of
N=100 different lossless dielectric slabs."
Visually/spatially, what does this look like?
I can see two possibilities
1) the slabs are stacked on top of each other...
so I got λ = 1. 'A' I assume is the system matrix or my Jones Vector, which is given as a 2 by 2 matrix. So that makes Av=v, thus A must be 1?? The 'v' values must be the same, but isn't 'v' the eigenfunction itself? The equation Av=v eliminates the 'v' value. What am I doing wrong here?
I am trying to find out just how to solve for the eigenfunction given a system, namely the parameters of an optical system (say a polarizer) in the form of a 2 by 2 Jones Vector. I know how to derive the eigenvalue, using the the constituent det(λI -A) = 0, 'A' being the system at hand and 'λ'...
I should have mentioned in the original post, but the instructor asked it expecting us to go home and ponder on it and see if we can figure out the answer.
I see what your saying. The higher the impedance in the resistor of the load, the more of a jump the voltages gets because the signal is reversed back towards the source, causing either a constructive or destructive wave interference. I'm sure i'll get a more intuitive understanding of this and...
Hmm...I don't quite grasp the message here. I apologize for that. So what i understand from it is that the transmission line wave is the EM wave running through the medium(coaxial cable, wire, etc.) and the IV characterisitcs we see in circuit analysis are bound by the EM wave propagation...
Forgetting and simply learning what it is and how its applied is well and all if you want to solve a circuit or be successful as an engineer, but I know I and apparently the thread starter are curious as to what the chemist know that we dont, perhaps out of sheer curiosity or a desire for a...
Ok I can sit well with that explanation. So a transmission line cannot have an impedance larger than the impedance of free air, which is at 377. So how come resistors are able to bypass this law yet transmission lines cannot? Does it have to do with material limitation in the construction of a...
So we are told in our class that the characteristic impedance of a coaxial cable is impractical to be at a value like 500Ohms. Why is that?
The assumption is that the transmission line is lossless and that the dielectic constant (Er) is 1
I feel your struggle aphyx. Reading this post made me aware that I don't know as much about batteries as I thought I did. Keep reading different sources (wikipedia, textbooks, etc.) and asking great questions like these and I'm sure the whole picture of how the battery truly operates will start...
Homework Statement
Two waves on a string are given by the following functions:
Y1 (x,t) = 4cos(20t-x)
Y2 (x,t) = -4cos(20t+x)
where x is in centimeters. The waves are said to interfere constructively when their superposition |Ys| = |Y1 + Y2| is a maximum and they interfere destructively when...
I wasn't talking about the voltage across the TOTAL load. Read over the post again. I mentioned Vout being the Voltage across ONE arbitrary resistor in the circuit consisting of resistors(plural) and a capacitor. Thus, the voltage across the individual resistors will not equal the voltage source...