BASIC DC CIRCUIT CALCULATIONSBasic DC TheoryFigure 20 Voltage Total in a Series CircuitTo find the total voltage across a series circuit, multiply the current by the total resistance asshown in equation (2-5).VT = IRT(2-5)whereVT= total voltageI = currentRT= total resistanceExample 1: A series circuit has a 50W, a 75W, and a 100W resistor in series (Figure 21). Findthe voltage necessary to produce a current of 0.5 amps.ES-02 Page 26 Rev. 0
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