EM Field Controls

1.0
1.0x
Field Lines
Vector Arrows
Test Charge

Physics Equations

E = kq / r²
Electric Field (Point Charge)
F = qE
Force on Test Charge
V = kq / r
Electric Potential

k = 8.99 × 10⁹ N·m²/C² (Coulomb's constant)
q = charge magnitude
r = distance from charge
E = electric field strength