- #1
toothpaste666
- 516
- 20
Homework Statement
Homework Equations
q(t) = Cε(1-e^(-t/RC))
The Attempt at a Solution
for part a) the instant the switch is closed there is no charge on the capacitor so I am pretty sure I can ignore it for this part and use keirchoffs rules to find the currents through each resistor. For part b) I am less confident. I think I can use the equation q(t) = Cε(1-e^(-t/RC)) to find the charge. if t is a "very long time" like the question says I can say that t goes to infinity so q(t) = Cε(1-e^(-∞)) = Cε(1-0) = Cε = (4 μF)(42 v)
but I am not sure if this is correct.