Question

1. Two resistors, R₁ = 00 kΩ and R₂ = 3.00 kΩ, are connected in parallel and their combination is connected in series to a fully charged, 150-µF capacitor. When the switch is opened, the capacitor begins to discharged. What is the time constant for the discharge?  

Answer 1

$$R=\frac{R_1R_2}{R_1+R_2}$$

$$\tau=RC$$