Question

P2.68. Solve for the power delivered by the voltage source in Figure P2.68, using the mesh-current method.

ΙΩ 7Ω 11Ω 512 3Ω 31 V

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Answer #1

Draw the circuit diagram. 70 11 12 523 31 V Apply mesh analysis to loop 1. 5i, +7(i - iz)+31=0 (5+7)i– 7iz =-31 121– 7iz =-31Apply mesh analysis to loop 3. iz +11(i3 -12)+7(iz - 11 )=0 -7i-1 liz +(1+11+7)iz = 0 -7ij -1 liz +19iz = 0 ......(3) Write t

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