Recent content by giladsof

  1. G

    Can Electrostatics Cause Problems?

  2. G

    Solving Ampere's Law Trouble: My Mistake in Calculating B?

    It's a given that the rectangle is fixed to the ground.. So apart from the fact that the magnetic field in it changes direction all the time, B's size is constant
  3. G

    Solving Ampere's Law Trouble: My Mistake in Calculating B?

    Where is my mistake? I have a feeling it's in the calculation of B... ?
  4. G

    Parallel-plate capacitor with flipping charge

    Thank you I solved it. One small question remains- I don't understand why is it so intuitive that the capacitor will resist this change?
  5. G

    Parallel-plate capacitor with flipping charge

    well usually in these kind of questions where there is some kind of change in the capacitor (the plates were move closer for instance)- We need to calculate the energy in the system before the change, calculate the energy afterwards and see the change's size and sign. But in this problem I...
  6. G

    Parallel-plate capacitor with flipping charge

    Homework Statement Homework Equations U = 0.5CV^2 The Attempt at a Solution I'm really lost on this one...?
  7. G

    What is the impact of superposition on Amper's Law?

    Cheers... very helpful...
  8. G

    What is the impact of superposition on Amper's Law?

    this is the wrong answer... the question is where is my mistake...?
  9. G

    What is the impact of superposition on Amper's Law?

  10. G

    What is the concept of superposition in electrostatics?

    very close.. but not quite there
  11. G

    Which Way Is V? Understanding the Relationship Between Electricity and Magnetism

    OK... As I try your idea I get into the following dilemma: which way is V? The movement of the rod or the movement of the current? Unfortunately neither one of those options creates a force upwards using the right hand rule... \:
  12. G

    What is the concept of superposition in electrostatics?

  13. G

    Which Way Is V? Understanding the Relationship Between Electricity and Magnetism