Question

3. UMF 5.33 5.33 After having been in position 1 for a long time, the switch in the circuit of Fig. P5.33 was moved to position 2 at t = 0. Given that Vo = 12 V, Ri = 30 k2, R2 = 120 KS2. R3 = 60 k-2, and C = 100 F, determine: (a) ic(0) and uc(0) (b) ic(O) and vc(0) (c) cic() and uc(0) (d) vci) for 10 (e) ic(t) for 1 > 0 i o e cc Figure P5.33: Circuit for Problems 5.33 and 5.34.

Answer 1

h for tso switch is in position for a long time. i capacitor attains steady state. - At steady state capacitor auto ay open circuit. 14107 i (0) = oA V16) - CV in at t =o switch moved to position 2. → Since, capacitor won't allow sudden changes itt voltage ve lot) = Vete) = V(10) =OV for t=0 Ri= 30k isol VOA ook 263 . () COV 150k =RE 30k , tay=fi_lot) Love (10) = 0.4mA

@ for to cat steady state) 30k 360 Valdo) 2100) 20 . Velo) 6ok xizu bek + 30K Vel.) - 8v un Y et a y ) + (v4 tot) –V 10) e for to the circuit is . zok 6ok Req seen by co L ook bok I Rew Req = 30k // bok = lokum 7 = ReqC = dok X loope' = 2 see. a velt) = 8+ (0-8) 12 ut Velth = P(ime-oost, um

© ; 4) = c d x a leege of the (e- ce cost Jouts a laupa o-ee*r-c-9 ) uit .-0-57 ult f) - |eo L X 4 aº ielts = Bus-0057 7 0.4e ult) mA