Physics

Electric Field Calculator

Find the electric field from a point charge.

Calculated Output

Electric field (N/C) 35,950.21

Formula: E = k·Q ÷ r²

Step-by-Step Breakdown

1. Values used:

2. Charge = 0 C

3. Distance = 0.5

5. Electric field = 35,950.21N/C

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The math behind it

E = k·Q ÷ r², with Coulomb's constant k ≈ 8.99 × 10⁹ N·m²/C².

1 µC at 0.5 m → about 35,950 N/C.

How is field related to force?

Force on a test charge q is F = qE.