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|E| / V m⁻¹ · log₁₀ · p03–p97
Model declarationsz = 0 slice of the 3D fieldideal point charge · r < 12 mm withheld ×2
Field probe250 mm · 160 mm · 0 m
updatingwaiting for authoritative result
waiting for result

Experiment brief

ES-02 · K12–University

Where is the potential zero, and why can the electric field there still be nonzero?

  • superposition
  • dipole symmetry
  • E = −∇V

Lab tasks

0 / 3 solved
  1. 1Predict

    On the perpendicular bisector between the two charges, which way does the electric field point?

  2. 2Measure

    Place the probe at the midpoint (0, 0) and read the field magnitude |E|.

    ±2%
  3. 3Extend

    Double the separation (charges at ∓0.28 m). What is |E| at the midpoint now? Predict, then check.

    ±2%

Experiment

Point charges & multipoles

Continuous distributions

Boundary-value problems

Prescribed 3D charge distributions · full xyz workspace or z=0 slice · 3D analytic electrostatics · xyz workspace / z=0 slice · 2 sources · — samples · window -0.5…0.5 × -0.36…0.36 m · CODATA-2022 · manifest ↗