7_Chapter 21 HomeworkCH21 Alternating Current Circuits and Electromagnetic Waves

7_Chapter 21 HomeworkCH21 Alternating Current Circuits and Electromagnetic Waves

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Alternating Current Circuits and Electromagnetic Waves 207 21.10 () max max max 6 == 2 2 90.0 Hz 3.70 10 C/V 48.0 V =0.100 A= 100 mA C V If C V X π 21.11 rms max rms max 2 2 C VV C f C V X ππ ∆∆  =∆   2 so 5 max 0.75 A 1.7 10 F 17 F 2 60 Hz 170 V 2 I C fV µ = × = 21.12 rms max rms 2 C IC X ω or 6 rms 140 V = 120 rad s 6.00 10 F 0.224 A 224 mA 2 I ×= = 21.13 2 L Xf L = , and from I L t ε = , we have ( ) t I L = . The units of self inductance are then [] [ ] Volt sec Amp t I L . The units of inductive reactance are given by 1V o l t s e c V o l t Ohm
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This document was uploaded on 10/20/2011.

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