Recent content by z_sharp

  1. Z

    Solve Inductance for 550nm EM Waves w/17pF Capacitor

    So this is what I have now, the answer I'm getting is extremely small, could someone please just check over my work to see if I have made any errors... Thanks \begin{gather*} C=17pF=1.7\times10^{-11}F\\ \lambda=550nm=5.5\times10^{-7}m\\ c=3.0\times10^8m/s \end{gather8}...
  2. Z

    Solve Inductance for 550nm EM Waves w/17pF Capacitor

    Hi all, I've managed to solve the following question but the answer I'm getting doesn't seem right... What inductance must be connected to a 17 pF capacitor in an oscillator capable of generating 550 nm (i.e. visible) electromagnetic waves? Comment on your answer. To solve it I just...
  3. Z

    Calculating Electron Movement in a Television Picture Tube

    Hey all, I'm working on this question for my homework. Can someone please help me get it under control, I read it and all I can say is 'huh'? In a television picture tube, electrons are accelerated by thousands of volts through a vacuum. If a television set were laid on its back, would...
  4. Z

    Finding Equilibrium Angle in Uniform Electric Field

    Thanks for your help, I was able to get the problem with the assistance you provided. :smile:
  5. Z

    Finding Equilibrium Angle in Uniform Electric Field

    Hey all, I'm not sure where to start on this question. Any ideas would be spectacular. A tiny conducting ball of mass 1.00 g and charge 20.0 times 10^{-6} is hung from a non-conducting, massless thread. The electric field of magnitude 10^3N/C existing in this region is uniform and...
  6. Z

    How Do You Calculate the Maximum Angle of Deviation in an Electric Field?

    Hey all, I'm not sure where to start on this question. :confused: :confused: Any ideas would be spectacular. A tiny conducting ball of mass 1.00 g and charge 20.0 times 10^{-6} is hung from a non-conducting, massless thread. The electric field of magnitude 10^3N/C existing in this region...
  7. Z

    Calculating Charge on Conducting Balls Hanging from Strings

    So following your advice this is what I have come up with but I can't seem to solve the proof \begin{equation*} \begin{split} F_{net_{x}}=0 \\ 0=F_c+T_x \\ 0=\frac{kq^2}{L^2}-L\sin\theta \end{split}\end{equation*} and \begin{equation*} \begin{split} F_{net_{y}}=0 \\...
  8. Z

    Calculating Charge on Conducting Balls Hanging from Strings

    Help I too am working on a similar question. For mine it is asking for a proof that... x=(\frac{2kLq^2}{mg})^{1/3} So far this is what I have \begin{equation*} \begin{split} F_{net}=0 \\ 0=F_c+F_g+T \\ mg+\frac{kq^2}{x^2}+T=0 \end{split} \end{equation*} I'm not sure where...
  9. Z

    Total internal reflection problem.

    Solution? Hey all, totally bringing this up from the thread graveyard, but I too am having the same problems with this question. I understand where Doc Al is comming from but I still don't have a Θ1 to go from. Any help with this would be more then amazing.
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