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Calculate voltage, current, resistance, or conductance with our free Ohm's Law calculator. Solve V=IR equations instantly with step-by-step results for electrical circuits and electronics projects.

Free power calculator for electrical circuits. Calculate watts, voltage, current, or resistance using P=VI and P=V²/R formulas. Perfect for engineers, students, and DIY electronics.

Calculate power dissipation and heat energy in resistors. Solve P=I²R and Q=I²Rt equations instantly. Free tool for electrical engineering, physics students, and circuit design.

Calculate induced EMF, magnetic flux change, and electromotive force with Faraday's Law. Solve ε=-N(ΔΦ/Δt) for electromagnetic induction problems in physics and electrical engineering.

Calculate induced current and power dissipation from electromagnetic induction. Free Lenz's Law calculator for physics students and engineers working with changing magnetic fields.

Calculate electrostatic force between charges and electric field strength. Free Coulomb's Law calculator with F=kq₁q₂/r² formula. Essential tool for physics and electrical engineering.