Amperage or currentIamperes, amps A Resistivity or resistanceRohms Ω Wattage or powerPwatts W ForRtake impedanceZ Basic Principles of Electric Circuits PhysicsFormularyandElectricityEquations Formula wheel▼Important formulas Electrical engineering lawsElectronic engineering laws ...
Iis the current in amps (A) ΔQis the electric charge in coulombs (C), that flows at time duration ofΔtin seconds (s). VoltageV= currentI× resistanceR PowerP= voltageV× currentI In electrical conductors, in which the current and voltage areproportional ...