Discharging a capacitor via resistors with Cobra SMARTsense Principle
In this experiment, voltage curves during the discharge process of a capacitor in an RC circuit are measured. Different resistors are used to investigate the relationship between the half-life and the respective resistance values. Tasks - Record the discharge curve of three different capacitors as a function of time.
- Determine the half-life of the capacitor.
- Identify the correlation between resistance and half-life.
Learning objectives
Students learn to understand the discharge process of a capacitor in an RC circuit and recognize its dependence on different resistance values. They also determine the relationship between the half-life of the discharge process and the resistance. Benefits - Simple setup in just a few minutes.
- High-resolution data acquisition (up to 10 kHz).
- Improvement of digital media literacy.
- Safe (RiSU-compliant) power supply unit.
Scope of delivery |
Plug-in board, for 4 mm plugs
|
06033-00
|
1
| |
Cobra SMARTsense Voltage - Sensor for measuring electrical voltage
|
12901-01
|
1
| |
Wire building block, housing G1
|
39120-00
|
3
| |
PHYWE Power supply, 230 V,DC: 0...12 V, 2 A / AC: 6 V, 12 V, 5 A
|
13506-93
|
1
| |
on-off switch, G1
|
39139-00
|
1
| |
Resistor 1 kOhm, 1W, G1
|
39104-19
|
1
| |
Connecting cable, 32 A, red, various lengths
|
07360-01
|
1
| |
Connecting cable, 32 A, blue, various lengths
|
07360-04
|
1
| |
Connecting cable, 32 A, red, various lengths
|
07361-01
|
1
| |
Connecting cable, 32 A, blue, various lengths
|
07361-04
|
1
| |
measureAPP - the free measurement software for all devices a
|
14581-61
|
1
| |
Resistor 2.2 kOhm, 1W, G1
|
39104-23
|
1
| |
Resistor 470 Ohm, 1W, G1
|
39104-15
|
1
|
|
Service
