Physics
Electric Field (point charge)
Field from a point charge.
Formula
Formula
E = k qr2
Variables
| Symbol | Definition | Type & range | Units | Role |
|---|---|---|---|---|
| q | charge (C) | real number (ℝ) | C | input |
| r | distance (m) | real number (ℝ) | m | input |
Try it yourself
Interactive calculator
Worked examples
Example 1
Givenq (C) = 0.000001, r (m) = 0.1
Result898755.1787
Example 2
Givenq (C) = 5e-9, r (m) = 0.02
Result112344.3973