Experiment: Charge and Discharge of a capacitor

The following experiment shows the charge and discharge of a capacitor.

 

1 Activity

Charge-Discharge of the capacitor

Experimental Phase

Experiment No.1: Charge restoration.

1. We connected the circuit. 

2. We adjusted the source at 30V. Then we turned the switch off.

3. We timed the voltage’s raise. Then we filled the gaps below:

Charging
Time(sec)	Voltage(V)
0
3
6
9
12
15
18
21
24
27
30
31

4. Then we wrote down the charging time.

Experiment No.2: Discharging time.

1. After that we timed how much time is needed for the capacitor to discharge.

2. Then, we filled the gaps below:

Discharging
Time(sec)	Voltage(V)
0
3
6
9
12
15
18
21
24
27
30
33
36
39

3. We repeated the experiment to find the average time that the capacitor needs to discharge. So we completed the board below:

	Measurement No.1	Measurement No.2	Measurement No.3	Measurement No.4	GPA
Time(sec)

Experiment No.3: Charge restoration- Discharging time.

We repeated both experiments but the capacity was100nF.