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Ohms Law Calculator
Calculate the basic units of DC starting with up to 12 Parallel, or 3 in Series resistors, current, voltage and Watts values.
This calculator can calculate the resistor required to volt-drop voltage to a required level by setting the headers of < Volts > and < Watts > to < V-In > & < V-Out >.
This calculator is one from a set of 4 which can be run from within Microsoft Excel.