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Unformatted text preview: - 20i" = -16 W. The 20 V soulce also is delivcring power to the (4.rr) 10i, - Stb + 0i. = 8i. + 20ib 6;c = oir 6lb + 101. = The three mesh currents are i b : 2 0 A , r. : 0.80 A. b) The branch curfent in the direction of the voltage 8 () resistor in the drop 0, is i" - tb. ti - 28.8 V. ,,: 8(1" lb) objective 2-llnderstand and be able to use the mesh-current method 4.7 Use lhe mesh-current method to find (a) the power delivered by the 80 V source to the cir-cuit shown and (b) the power dissipaled in the 8 O resistor. 80v Answer: (a) 400W; (b) 50w NOTE: Abo try Chaptet Problens 4.31 snd 1.32. 4.6 Tiie Mesh-eurrent Stethed amd mependent So|'srees II lhe circuilconlains dependenl sources. the nesh-currenl equalions lnusl be supplenenled by lhe appropriale conslraiil equalions. Exanple 4.5 illustrales the application of the mesh curenl method when the circuit includes a dependenl source, 30(:}...
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This note was uploaded on 07/05/2010 for the course EE 100 taught by Professor Boser during the Spring '07 term at University of California, Berkeley.
- Spring '07