Direct-Current Circuits117(b) The total power input to the circuit is ()( )121.50 V1.50 V0.600 A1.80 WinputIεε=+ =+=P( )220.600 A0.255 0.153 0.147lossIr r=+=Ω+ Ω=PThus, the fraction of the power input that is dissipated internally is W0.147 W0.0816 or 8.16%1.80 Wlossinput==PP18.25Applying Kirchhoff’s junction rule at junction agives (1) Using Kirchhoff’s loop rule on the upper loop yields III(3) ( )13.04.0
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This note was uploaded on 12/09/2011 for the course PHYS 2020 taught by Professor Staff during the Fall '10 term at FIU.