Problem: The switch has been in position A for a long time. At t=0, the switch moves to B. a) What is v(0), the initial capacitor voltage b) Determine t, the circuit time constant c) Find v(infinite), the final capacitor voltage d) Using the results above formulate v(t) for t>0. e) Calculate the value of the voltage across the 4K resistor at t 1 sec. 0.5 mF 30 V 3 ΚΩ www B 4 ΚΩ ww 1=0 24 V 5kQ www +21