The calculator below uses Ohm’s Law to determine the voltage, current, or resistance through a conductive path in a circuit.
Ohm’s Law states that the voltage (abbreviated ‘V’) between two points is equal to the electric current (abbreviated ‘I’) times the resistance (abbreviated ‘R’) between the two points:
Voltage (in volts) = Current (in amps) x Resistance (in ohms)
V = IR
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