Example 1
A +1 µC point charge produces about +8.99 kV at 1 m.
Mendeleev
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Physics tools › Electric potential of a point charge
Mendeleev · Physics
Electric potential of a point charge
Electric potential from a point charge varies inversely with distance and keeps the sign of the source charge.
Formula usedV = kQ/r
Visual cue · field / circuit
Calculate
Electric potential of a point charge
What do the symbols mean?
Velectric potential
Qsource charge
rradius
Two worked examples
Example 2
A −2 µC charge at 0.50 m gives about −36.0 kV.
Good to knowThe zero of potential is taken at infinite distance, as in the standard point-charge model.