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Jackyo
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http://img142.imageshack.us/img142/7485/physicsb.jpg [Broken]
Hi,
sorry that I only mention a first strategy for solution for the following problem, but I can not think of a better one.
For the question you will need to look at the image in the appendix:
1. You will see a frame, consisting of the bars F,G,H and I.
2. Between the bar HI is a capacitor C;
between the bar GH is a spring with spring constant k.
3. The density in the bar is everywhere the same.
4. Assume that all bars and the spring are conductive
5. Do not include friction in the calculation
6. orthographic to the frame is a magnetic field B
What is the time of one periods of the spring?
Obviously there is a tension V=- d(B*A)/dt, because of the changing of the frame-area A.
Because the resistance of the frame is ~0 no current will be detected.
I could now create the function x -> V(x), which attaches every elongation x the current tension V(x).
But what is the next step for finding the solution? What can I calculate with the capacity C?
Jenny
Hi,
sorry that I only mention a first strategy for solution for the following problem, but I can not think of a better one.
For the question you will need to look at the image in the appendix:
1. You will see a frame, consisting of the bars F,G,H and I.
2. Between the bar HI is a capacitor C;
between the bar GH is a spring with spring constant k.
3. The density in the bar is everywhere the same.
4. Assume that all bars and the spring are conductive
5. Do not include friction in the calculation
6. orthographic to the frame is a magnetic field B
What is the time of one periods of the spring?
Obviously there is a tension V=- d(B*A)/dt, because of the changing of the frame-area A.
Because the resistance of the frame is ~0 no current will be detected.
I could now create the function x -> V(x), which attaches every elongation x the current tension V(x).
But what is the next step for finding the solution? What can I calculate with the capacity C?
Jenny
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