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MotionLab
The invisible force field that a charge creates in the space around it.
The electric field (E = kq/r²) tells you the force per unit charge at a point — it's a vector pointing away from positive charges and toward negative ones. The electric potential (V = kq/r) tells you the potential energy per unit charge — it's a scalar that drops off more slowly (1/r vs. 1/r²).
Real charge distributions create complicated field patterns, but every such field is just the sum (superposition) of simple point-charge fields — this calculator gives you the building block that all electrostatics is assembled from.
Electric field (N/C)
35,950.207
E = kq/r², V = kq/r
What you entered
E = k|q| ÷ r²
8.988e+9 × |1.00e-6| ÷ 0.5²= 3.5950e+4 N/CV = kq ÷ r
8.988e+9 × 1.00e-6 ÷ 0.5= 17975.1036 VResult
Electric field (N/C): 35,950.207
A charge of 1.00e-6 C creates a field of 3.5950e+4 N/C and potential of 17,975.104 V at 0.5 m.