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Ring and Rod

Charge spreads over a ring, a rod or a disc. Set the field at a point.

Physics · Class 12 · Rings, rods, discs and sheets · 6 simulations. For JEE, NEET and your boards.

A picture of the Ring and Rod simulation

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What you'll learn

  1. Ring axis: Only the along-axis parts add
  2. Find the ring's peak: Where a ring's field is biggest
  3. Rod end-on: A rod end-on: add its pieces
  4. Three quarters of a ring: Symmetry: opposite pieces cancel
  5. Point, wire, sheet: How fast a field falls: 1/r², 1/r, flat
  6. Launch from a disc: Use energy when the field changes