Recent content by Dev

  1. Dev

    Electrostatics: Gauss' Law Problem Finding the Flux through a Conducting Spherical Shell

    I think the answer to part (i) is given wrong. The flux can't be zero because there is a charge Q/2 enclosed by the shell. So, the flux should be Q/2 divided by permittivity of free space. Now in part (iii), the force on charge at point A is given correct. However, the force on charge at centre...
  2. Dev

    Gauss' Law for Non-Uniform electric fields

    Can I trust you blindly, sir?
  3. Dev

    Gauss' Law for Non-Uniform electric fields

    Can I trust this site blindly?
  4. Dev

    Gauss' Law for Non-Uniform electric fields

    So, the field is not necessarily uniform on the Gaussian surface?
  5. Dev

    Gauss' Law for Non-Uniform electric fields

    The answer key shows option D is correct. But I think option C is also correct. Which option is correct here?
  6. Dev

    If closed integral of E.dS is zero over a surface, then...?

    But this question is indeed a multiple -answer problem.
  7. Dev

    If closed integral of E.dS is zero over a surface, then...?

    Thanks! I don't understand why do they make such errors and other online sources just copy that blindly!
  8. Dev

    If closed integral of E.dS is zero over a surface, then...?

    Both options C and D are given to be correct in the answer key.
  9. Dev

    If closed integral of E.dS is zero over a surface, then...?

  10. Dev

    If closed integral of E.dS is zero over a surface, then...?

    I am in Class 12, India. The question is from NCERT Exemplar Class 12.
  11. Dev

    If closed integral of E.dS is zero over a surface, then...?

    I think only Option a should be correct because net electric flux can be zero even if charges are inside the surface. For example, if two charges of +2 coulomb and -2 coulomb are inside the surface, then also net electric flux over the surface is zero! But my textbook, as well as various online...