For the network of given figure:
a. Calculate vC, iC, and vR1 at 0.5 s and 1 s after the switch makes contact with position 1.
b. The network sits in position 1 10 min before the switch is moved to position 2. How long after making contact with position 2 will it take for the current iC to drop to 8 µA? How much longer will it take for vC to drop to 10 V?