Chapter 27, Problem 66P

Figure 27-67 display two circuits with a charged capacitor that is to be discharged through a resistor when a switch is closed. In Fig. 27-67a, R₁ = 20.0 Ω and C₁ = 5.00 μF. In Fig. 27-67b, R₂ = 10.0 Ω and C₂ = 8.00 μF. The ratio of the initial charges on the two capacitors is q₀₂/q₀₁ = 1.50. At time t = 0, both switches are closed. At what time t do the two capacitors have the same charge?

Figure 27-67 Problem 66.