LUDO › Simulations › The Forces

Pith Balls

Charge two balls hanging from threads. Predict how far apart they swing. Tension, weight and the Coulomb push balance.

Physics · Class 12 · Hanging charged balls · 6 simulations. For JEE, NEET and your boards.

A picture of the Pith Balls simulation

Start Pith Balls →

What you'll learn

  1. Set the gap: Three forces on a hanging ball
  2. Pull in the thread: The thread takes the rest
  3. Double the charge: How the gap grows with charge
  4. Unequal masses: Unequal masses: take torques about the hook
  5. Dipped in oil: Upthrust and a dielectric
  6. Charge leaking away: Working backwards from the gap