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Charge & Field Lab
Class XII · Electrostatics: visualize E, V, field lines and equipotentials.
Cursor x,y
—
V (a.u.)
—
|E| (a.u.)
—
Charges
2 / 4
Controls
Click on the canvas to place (up to 4 charges).
q1 (+)
charge
q2 (−)
charge
Formulas
- E = kq/r² (vector sum)
- V = Σ kqᵢ/rᵢ
- E ⊥ equipotential surface
- Field lines: from + to −
Try this
Build a dipole (one +, one −, equal magnitudes). Hover the midpoint: V ≈ 0 but |E| is non-zero. Now make both charges + : the midpoint has V max but E = 0.