A capacitor is charged by way of a resistor. The current is measured as a function of time and the effects of capacitance, resistance and the voltage applied are determined.
- Simple and very clear set-up: only few components required
- Cost savings: Xpert-Link provides all subsidiary functions (power supply, switch, trigger)
- Extra experiment included: "Switch-on behaviour of a coil"
- Simplified implementation: all pre-settings already prepared
- Further experiments in electricity and electronics can be performed with the equipment
To measure the charging current over time:
- using different capacitance values C, with constant voltage U and constant resistance R
- using different resistance values (C and U constant)
- using different voltages (R and C constant)
To determine the equation representing the current when a capacitor is being charged, from the values measured.
What you can learn about
- Time constant
- Exponential function
Operating system-independent software included. Computer not provided.