In the Circuit Shown, Both Resistors Have the Same Value $\tau$

question 2

Multiple Choice

In the circuit shown, both resistors have the same value R.Suppose switch S is initially closed and capacitor C is charged.When switch S is then opened, the circuit has a time constant $\tau$ _a.Conversely, suppose S is initially open and capacitor C is uncharged.When switch S is then closed, the circuit has a time constant $\tau$ _b.The ratio $\tau$ _a/ $\tau$ _b is:

• A)0.5
• B)0.67
• C)1
• D)1.5