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Chapt06PP - 2009 CHAPTER 6 q 120 x10 6 = = 40V C 3x10 6 1 1...

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© 2009 CHAPTER 6 P.P.6.1 = = = 6 6 10 x 3 10 x 120 C q v 40V = = = 1600 x 10 x 3 x 2 1 Cv 2 1 w 6 2 2.4mJ P.P.6.2 ) t 2000 sin 50 ( dt d 10 x 10 dt dv C ) t ( i 6 = = = cos(2000t) A P.P.6.3 π = = t 0 t 0 3 3 t 120 sin 50 10 x 1 . 0 10 idt C 1 v dt V V ) t 120 cos 1 ( 12 50 t 120 cos 120 500 t 0 π π = π π = v(t = 1ms) = = π π ) 12 . 0 cos 1 ( 12 50 93.14 mV v(t = 5ms) = = π π ) 6 . 0 cos 1 ( 12 50 1.736 V P.P.6.4 i(t) = 6 t 2 , 100 2 t 0 , t 50 = = = idt 10 idt 10 1 idt C 1 v 3 3 For 0< t <2, = t 50 C 1 v t 0 dt = 25t 2 x 10 3 For 2< t <6, + = + = t 2 ) 1 . 0 2 . 0 t 100 ( ) 2 ( v dt 100 C 1 v = (100t - 0.1)V At t = 2ms, v = 100 mV At t = 5ms, v = (500 - 100)mV = 400 mV
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