Each of the two circuits in Figure P7–5 have a switch that affects their time constants. For circuit C1 find the time constant when the switch is in position A and repeat for position B. For circuit C2 find the time constant when the switch is closed and repeat when it is open.

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R1 R1 B www Aq C C R3 R2 (C1) R2 C R3 R4 (C2) FIGURE P7-5