Question

3 The switch in the figure on the left has been in position "A since the war of Ba. Then it was thrown into position to Determine the voltatge across the capacitor as shown fort and calculate its values att4s.

Answer 1

voltage across the capacitor C V(t) = 30-15 e sooooot volte CY At t=48 VGS) = 30 - 15 e 5.***0x4 = 30-1500) [v&&=4) = 30 vols

voltage across the capacitor C V(t) = 30-15 e sooooot volte CY At t=48 VGS) = 30 - 15 e 5.***0x4 = 30-1500) [v&&=4) = 30 vols

At tzó :- Switch is in position A 24v VC 24 X 5K 5K+3K VO) = 15 volts we know that, v (O) = V(69) = 15 volts I (for tso) T= Rinc Rohi - Switch es in position B. short circuit the Bov independent Voltage Source Rin? Rih=4K2 T = Rin C = UKX0.5*109 IT = 2l sec position B At t=0 :- uke Switch is in very lov sov IV (0) = 30 volte Pra) 3 3o make we know that, V(t) = V(60) + (0) - VG)] etly V (t) = 30 +(15-307ē yet V(t) = 30 -15ė 0.518 volts