PhysicsLAB: Test Scenario: Resistor Capacitor Circuit

This scenario is based on AP Physics B 1988 FRQ B3

Refer to the following information for the next nine questions.

In the circuit shown above, the switch, S, is originally open resulting in the capacitor NOT being connected.

Determine the total resistance in the original circuit.

Determine the current through the battery.

How many volts are lost across the 3.6-ohm resistor?

How many volts are lost across the 3-ohm resistor?

Determine the current through the 4-ohm resistor.

The switch is then closed connecting the capacitor to the circuit. After a long time passes, steady-state currents are reached.

What is the current through the ammeter?

What is the voltage across the capacitor?

What is the charge on the capacitor?

How much energy is stored on the capacitor?