Each group has to design an RC circuit with a switch. The circuit can contain one switch, one capacitor, one 9V-battery, and several resistors. At start, the voltage of the capacitor is at V2 volts. When the switch is pressed, the capacitor is charged up to voltage around V1 volts with time = t1. The voltage stays around V1 until the switch is released. When the switch is released, the capacitor discharge its voltage down to around V2 with time = t2. The value of V1, V2, t1, t2 must conform to the following conditions.
The value of V1, V2 and t1 depend on the last 2-digit of each team member’s student ID. Suppose that your student ID is in format 58xxxxxxabc. Then,
t1 = arbitrary
Where V1, V2 and t1 are from each member’s student ID and it does not need to be in order.
You should use minimum number of resistors as much as possible.
Design your circuit in paper. Explain the idea and calculation in details. Then, prepare to connect the circuit on your protoboard and show your supervisor the voltage and the time by your multimeter & clock. Please survey the value of R and C in the market before designing your circuit.