Electric Field of a Point Charge

Electric Field · ch01-electric-charges-and-fields

Plot E(r) for a point charge and observe how field strength falls with distance.

Controls

Source charge1.00 nC

radius r0.10 m

Live values

E = \frac{kq}{r^2}

Try this: Flip the sign of q — the curve reflects across the axis. Outside about 1 m the field is already weak.

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