946_Physics ProblemsTechnical Physics

946_Physics ProblemsTechnical Physics - Chapter 33 P33.70...

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Chapter 33 287 P33.70 (a) IV R C L rms rms =+ F H G I K J 11 2 2 ω ∆∆ VV rms rms bg max when C L = 1 f LC == ×× = −− 1 2 1 2 200 10 0 150 10 919 36 π H F Hz . ej (b) I V R R = rms V 80.0 A 120 150 . I V L L = rms V 374 s H A 120 0200 160 1 af . . IVC C × = rms V s F m A e j 120 374 0 150 10 6 73 16 .. (c) II I I RC L rms A = + = 2 2 2 2 000673 160 219 . . (d) φ = L N M O Q P = L N M O Q P =− ° tan tan . . 46 7 I CL R The current is lagging the voltage . FIG. P33.70 P33.71 (a) XX LC 1884 when f = 2000 Hz L X f L = 2 1884 0150 ππ 4 000 rad s H . and C fX C = 1 2 1 4000 42 2 b g b g rad s nF . Xf L = 20 1 5 0 . H a f X f C = × 1 2 4 22 10 8 F ZX X 40 0 2 2 fXXZ (Hz) 300 600 800 1000 1500 2000 3000 6000 10 000 283 565
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