Zaymiey

⚛️ Physics  ·  Electrostatic Potential and Capacitance  ·  NEET & JEE

Two conducting spheres of same charge Q but different radii r and 2r are connected by wire. Charge redistributes so:

Answer: Larger sphere gets more charge.

  • A Larger sphere gets more charge
  • B Smaller sphere gets more charge
  • C Both get equal charge
  • D Charge stays where it was

Correct answer: A. Larger sphere gets more charge

Explanation: Connected spheres equalize potential: V = kQ/r. Larger sphere (2r) needs more charge Q' to have same V as smaller sphere.

Radial electric field lines and concentric red equipotential lines around a point charge (an electron), with field lines pointing inward

Field lines (radial) and equipotential lines (concentric circles) of a point charge. Equipotential surfaces are always perpendicular to the field lines. Image: Sjlegg, Public Domain, via Wikimedia Commons.

Concept context

Electric potential, equipotential surfaces, potential energy of charge systems, conductors, dielectrics, capacitors, combinations, and energy storage.

Read the full Electrostatic Potential and Capacitance notes →