206CHAPTER 21 21.5The total resistance (series connection) is 128.20 10.4 18.6 eqRRR=+=Ω+Ω=Ω, so the current in the circuit is rmsrms15.0 V0.806 A18.6 eqVIR∆== =ΩThe power to the speaker is then ()()2s0.806 A10.4 6.76 WspeakerIR==Ω=2avrmP21.6(a) ∆=, so max150 VVmaxrms150 V106 V22VV∆==(b) 377 rad s60.0 Hzωππ=f(c) At ( )1120 st=, ( )( )150 V sin377 rad s1 120 s150 V sinrad0vπ=(d) maxmax150 V3.00 A50.0 VR∆=ΩI21.712CXfC=, so its units are 11VoltVoltOhm1 Sec Farad1 SecCoulomb VoltCoulomb Sec
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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.