Fields & Electromagnetism Formulas
Fields & Electromagnetism formulas cover Coulomb’s Law, Electric Field of a Point Charge, Electric Potential of a Point Charge and more. These calculators let you solve for any unknown by entering the values you already know. Use them for quick design checks, study, and verifying real circuits.
Fields & Electromagnetism Formula Calculators
- Coulomb’s Law F = k · q1 · q2 / r²
- Electric Field of a Point Charge E = k · q / r²
- Electric Potential of a Point Charge V = k · q / r
- Gauss’s Law (Electric Flux) ΦE = Qenc / ε0
- Lorentz Magnetic Force F = q · v · B · sin(θ)
- Force on a Current-Carrying Wire F = B · I · L · sin(θ)
- Force Between Parallel Wires F/L = µ0 · I1 · I2 / (2π · d)
- Magnetic Field of a Straight Wire B = µ0 · I / (2π · r)
- Solenoid Magnetic Field B = µ0 · N · I / l
- Magnetic Dipole Moment m = N · I · A
- Faraday’s Law of Induction emf = N · ΔΦ / Δt
- Motional EMF e = B · L · v
- Magnetic Field Energy Density u = B² / (2 · µ0)
- Hall Coefficient RH = 1 / (n · q)
- Carrier Drift Velocity vd = I / (n · A · q)
- Cyclotron Frequency f = q · B / (2π · m)
- Conductivity ↔ Resistivity σ = 1 / ρ
- Number of Excess Electrons n = Q / e
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