14_Chapter 21 HomeworkCH21 Alternating Current Circuits and Electromagnetic Waves

14_Chapter 21 HomeworkCH21 Alternating Current Circuits and Electromagnetic Waves

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214 CHAPTER 21 (d) 9.15 bd L C X =−= ZX , so ( ) () ( ) rms rms 2.585 A 9.15 23.6 V bd bd VI Z ∆= = = 21.28 (a) 6 11 88.4 2 2 60.0 Hz 30.0 10 F C X fC π == = × 22 50.0 88.4 102 C ZRX =+= + Ω =Ω rms rms 100 V 0.984 A 102 V I Z === 0 88.4 tan tan 60.5 50.0 C X R φ −− −Ω  =   ° and cos cos 60.5 0.492 power factor ==− ° = () () ( ) ( ) av rms rms cos 100 V 0.984 A 0.492 =∆ = P 48.5 W = (b) ( )( ) 2 2 60.0 Hz 0.300 H 113 L L Xf = 50.0 113 124 L +Ω = rms rms 100 V 0.809 A 124 V I Z == = 0 113 tan tan 66.1 50.0 C X R  ° and cos
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This document was uploaded on 10/20/2011.

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