hp 48 tutorial - electric circuit

A circuit is constructed according to the schematics on the right.

Where:

• E is a battery of EMF 10V
• C is a capacitor of capacitance 0.1uF
• R is a 1k ohms reistor.

Assume that capacitor is fully charged. At time t = 0, the switch is turned to position S1 and is left there for 5 seconds before being turned to position S2.

Question:

Obtain the equation relating the relating the charge, q, flowing in the circuit with respect to time, t. Show the ensential parts of your workings.

Answer:

W-I-P