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## Homework Statement

We have a circuit with a battery, two resistors, a switch and a capacitor. We assume that the battery has a switch so that we can choose whether it should be a voltage source for the circuit.

a) At time t = 0, we put on a voltage Vs

over the battery in the circuit. What is the current over the resistors and over the capacitor?

b) At time t = 0, we put on a voltage Vs

in the circuit. What is the charge on the capacitor as a function of time? What is the current over R2

as a function of time?

## The Attempt at a Solution

I assume that the circle with the V inside is the switch. I guess I have to use

Kirchhoffs first and second law somehow, can someone give me hints? I not sure if understand the different components of the diagram, where is the switch for instance?