Ohms law and current intensity Ohm's law, or the law of electric conduction, establishes the connections between:  the intensity of the electric current (I) in an electrical circuit,  voltage (V) or applied electrical voltage (U) and  electrical resistance (R) in the circuit. I = V / R 

Complete two fields: intensity, voltage or resistance  


How to convert 
The mathematical formula for Ohm's law is: I = V / R or I = U / R Ohm's law equation in a circuit: I = E / (R + r) where: I  current intensity, measured in amperes (A); U or V  applied voltage, measured in volts (V); E  electromotive voltage, measured in volts (V); R  circuit resistance, measured in ohms (Ω); r  internal resistance of the source, measured in ohms (Ω); I = U / R R = U / I U = I X R 
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