Electric Field Lines & Potential

Place positive and negative charges to visualize field vectors, equipotential contour lines, and physical field traces.

Show Field Lines Show Vector Grid Show Equipotential Colors

Selected Charge Value (nC):

4 nC

Charges in Field: 0

Electric Constant (k): 8.99 × 10⁹ N·m²/C²

Info: Positives radiate outwards; Negatives attract inwards.

Electric Field strength (E) E = k · q / r²

Electric Potential (V) V = k · q / r

Parallel Plate Capacitor Simulator

Adjust plates geometry and dielectric inserts to study charge capacity, field density, and stored energy.

Plate Area (A):

300 mm²

Plate Separation (d):

6.0 mm

Dielectric Constant (κ):

1.0

Battery Voltage (V):

1.5 V

Capacitance (C): -

Charge Stored (Q): -

Electric Field (E): -

Stored Energy (U): -

Capacitance (C) C = κ · ε₀ · A / d [where ε₀ = 8.854 × 10⁻¹² F/m]

Stored Charge (Q) Q = C · V

Stored Potential Energy (U) U = 1/2 · C · V²