a. (10 marks) Find the voltage across the capacitor, vc, and the current flowing through the inductor, iz, in the circuit of Figure 7 under DC steady state conditions. 20V 9V 502 ww + 10 t=0 1F Vc ww b. (15 marks) The circuit in Figure 8 is designed to operate an alarm which activates when the current through it exceeds 0.1 mA. i. (10 marks) Calculate the voltage across the capacitor for t> 0 s. Assume that the capacitor was initially discharged. ii. (5 marks) How long does it take for the alarm to activate for the first time after the switch is closed? 10 2mH 502 Figure 7 6 ww Figure 8 80 F www 4 302 Alarm