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Dipole Twist

Set the torque, work or swing of a dipole. Then let it go.

Physics · Class 12 · A dipole in a field · 8 simulations. For JEE, NEET and your boards.

A picture of the Dipole Twist simulation

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What you'll learn

  1. Feel the twist: Torque on a dipole: τ = pE sin θ
  2. Torque from points: Torque as a cross product
  3. Flip it over: The energy of a dipole: U = −pE cos θ
  4. Swing period: A dipole swings like a pendulum
  5. Unequal ends: No net force: the centre of mass stays still
  6. Near a point charge: A dipole in a field that changes
  7. Near a big sheet: A big sheet makes a uniform field
  8. Swing near a charged ball: The field of a charged ball