# Search results

1. ### I How do I apply Maxwell's equations?

I don't get it how do I solve it with Gauss or Laplace when ∇×E≠0. I don't have a charge or even a region where electric field is made by a charge.I simply have sum of many circular vectors of E at any point on this surface.
2. ### I How do I apply Maxwell's equations?

Or does E always equal k/s cause ∇⋅E=0 where theres no charge?
3. ### I How do I apply Maxwell's equations?

For example, if I have a magnetic field perpendicular to some surface and I change this magnetic field with constant speed, how do I calculate the Electric field at any point on this surface, since ∫E⋅ds=k, where k is some constant, could be done with many different vector fields.
4. ### Need help with op-amp circuit

I've solved this.It turns out that g(x) ''breaks'' that way because of the fact that output voltage on the op-amp can't exceed supply voltage so the whole function changes.We need two op-amps in parallel so when whenever one of the output voltages reach their limits whole function doesn't become...

6. ### Need help with op-amp circuit

I'm trying to put this circuit in parallel with two capacitors and the inductor so it should work like a negative resistance but with function like that
7. ### Need help with op-amp circuit

Yes.Input voltage is that sign.X is resistance.Oh and I forgot to mention R1=R2 and R4=R5
8. ### Need help with op-amp circuit

So this is the circuit(with equations which were written by me, so I don’t know if they’re correct) and this is the graph I should get, but I don’t know how.( g(x) is the current vs resistance) I assume that those two equations collide somehow and I get that g(x), but I’m not sure. So my...
9. ### Problem on a chaotic circuit.

Thanks for the advice, I'll post an update on how it worked out.The reason I chose the breadboard over a PCB, was that I'm planning on experimenting(different combinations and values of resistance and capacity) As for the oscillator,I'm planning on buying the Sinometer ST16B 10MHz...
10. ### Problem on a chaotic circuit.

This is the schematic: . This is the function of a chua's diode, g(x)is resistance vs current: This is the double scroll : Yes, but shouldn't it oscillate?I highly doubt its a connection problem.
11. ### Problem on a chaotic circuit.

windows screen capture So I built this circuit(Chua's chaotic circuit) and I have to take it to the lab for plugging it to oscilloscope.I need to make sure it works, cause I won't have any time there to fix it or rebuild it.So when I i tested it with the multimeter,there was no voltage on the...
12. ### Analogies to oscilloscopes

I want to measure the Chua's circuit to detect a double scroll attractor.
13. ### Analogies to oscilloscopes

So oscilloscopes are pretty expensive and I'm a high schools student,I don't think I'll get my hands on one of those.Are there any other ways to measure the signals(an graph it of course)?
14. ### Question from Griffiths book?

In a normalization chapter theres an equation(1.21) which says: d/dt ∫|ψ(x,t)|^{2}dx=∫∂/∂t |ψ(x,t)|^{2}dx there was a description:(Note that integral is a function only of t,so I use a total derivative (d/dt) in the first expression,but the integrand is a function of x as well as t , so it's a...
15. ### An infinite energy?

I am really sorry for that, it was a long ago.I assume that it was about the electrical field and I somehow understood it that way Wait so what does "losing energy to gravitational waves" mean? By Newtonian mechanics it would have been easily explained, in ideal circumstances it would move...

17. ### An infinite energy?

In gravitational field its a constant exchange of photons right? Then in ideal circumstances, if one object orbits the other one forever, then it means we get the exchange of photons forever right?which means infinite energy, I get that it can't be observed but thats possible for infinite energy...
18. ### Transforming heat to electricity with semiconductors?

Well, I know the very basics of thermodynamics and I can understand how wave functions work.
19. ### Transforming heat to electricity with semiconductors?

But what makes the electrons move from one side to another? I get that electrons get more active but what makes them move in one direction?
20. ### Transforming heat to electricity with semiconductors?

"More recent devices use semiconductor p–n junctions made from bismuth telluride (Bi2Te3), lead telluride (PbTe)" Wait you said that they don't need semi-conductors right?Then whats this?
21. ### Transforming heat to electricity with semiconductors?

Is it real? how does it work?
22. ### Question about chaos theory

Well here's my question: what does really "create" chaos?jump between attractions?Can one sit and produce a function which will determine the chaos? P.S my question migh seem a little stupid just because I'm still trying to get a general sense of everything. Thanks.