Recent content by Electrodude

  1. Electrodude

    Coulomb's force vs the Lorentz force

    You can find the question paper here and the marking scheme here. The concerned paper is 55/2/1. I have included snippets for convenience. The CBSE board has its ways of bending physics to its liking. /s
  2. Electrodude

    Coulomb's force vs the Lorentz force

    According to the marking scheme for this question paper (This is from 12th Physics CBSE Board 2023) the correct answer is option (b).
  3. Electrodude

    Coulomb's force vs the Lorentz force

    Is it to assume static conditions to apply electrostatics?
  4. Electrodude

    Coulomb's force vs the Lorentz force

    This is the exact question. This question probably was prompted to around a million students two years back. Anyways, with reference to the complexity level of our syllabus, it would be safe to assume that there are two separate beams of electrons and protons, some unspecified distance apart and...
  5. Electrodude

    Coulomb's force vs the Lorentz force

    Beams of electrons and protons move parallel to each other in the same direction. They ______. a. attract each other. b. repel each other. c. neither attract nor repel. d. the force of attraction or repulsion depends upon the speed of the beams. This is a previous-year-question of CBSE Board...
  6. Electrodude

    Can a dipole be modeled as a point charge?

    Thanks @kuruman @Orodruin and @TSny for taking the time to engage. It seems I was not clear in the original post, I am not trying to model the whole of the dipole that way, that I understand is not possible. Instead what I'm trying to do is model the electric dipole's behaviour on the axis...
  7. Electrodude

    Can a dipole be modeled as a point charge?

    I was trying to solve this question when I got this idea: If the electric field due to a dipole on its axis, far from the short dipole is given by (2kp)/r^3, which we can write as (k(2p/r))/r^2 here this is similar to the electric field due to a point charge, but our charge is of a special type...