What you provide
What you provide
- Source charge magnitude expressed in C, using the same scenario as the other inputs
- Distance from charge expressed in m, using the same scenario as the other inputs
PHYSICS / ELECTROSTATICS
Point Charge Electric Field Calculator
Calculate electric-field magnitude around an isolated point charge in vacuum. Inspect the governing equation, substituted SI values, output, and model boundaries in one guided workspace.
- 01 Calculated in this tab
- 02 Values stay in this browser tab
- 03 Use boundary
Use boundary
Calculation path
Calculate electric-field magnitude around an isolated point charge in vacuum. The page evaluates the displayed equation from your supplied values and presents both symbolic and substituted KaTeX working so the arithmetic can be checked.
Calculation path
E = k_e |Q|/r^2
What you receive
What you receive
- Electric-field magnitude in N/C from the stated equation
- A symbolic formula plus substituted working with your values
- Visible assumptions, field guidance, and an authoritative learning reference
Use boundary
Choose the maximum decimal places shown. This does not increase source accuracy.
The source is an isolated point charge in vacuum and the test charge does not disturb it.
Use internally consistent units and retain extra precision when carrying the result into another calculation.
Reviewed reference factors