self potential energy and equipotential surface questions with solutions

Showing 1–2 of 2 questions

• MCQmediumElectrostaticsself potential energy and equipotential surface

  Eight identical isolated conducting drops, each of radius r and charge q, are initially very far apart. They coalesce into one spherical conducting drop. The ratio of final to initial electrostatic self-energy is:

  Options

  • Option A

    1

  • Option B

    2

  • Option C

    4

  • Option D

    8

  Check answerShow answer
  Open question & full solution →
• MCQmediumElectrostaticsself potential energy and equipotential surface

  A uniform infinite wire of linear charge density λ is placed along the y-axis. The locus of an equipotential surface is:

  Options

  • Option A

    x²+y²+z² = constant

  • Option B

    x²+z² = constant

  • Option C

    xyz = constant

  • Option D

    xy+yz+zx = constant

  Check answerShow answer

  JEE Mains 2025 28 Jan Morning Shift

  Open question & full solution →