Product details

  • Charging curve of a capacitor and switch-on behaviour of an inductance with Cobra4 Xpert-Link
  • Charging curve of a capacitor and switch-on behaviour of an inductance with Cobra4 Xpert-Link
Charging curve of a capacitor and switch-on behaviour of an inductance with Cobra4 Xpert-Link Charging curve of a capacitor and switch-on behaviour of an inductance with Cobra4 Xpert-Link

Charging curve of a capacitor and switch-on behaviour of an inductance with Cobra4 Xpert-Link

Item no.: P2420264

Measurement Type: with a computer, Mobile (Datalogging)
Experiment Type: Teacher Experiment, Laboratory Experiment

Difficulty Expenditure of Time print
  • Description
  • Scope of Supply
  • Downloads and Documents

Principle

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.

Benefits

  • 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

 Tasks

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

  • Charging
  • Discharging
  • Inductance
  • Time constant
  • Exponential function
  • Half-life

Operating system-independent software included. Computer not provided.

 

Document     Filesize
p2420264e.pdf Experiment guide, English 8.81 MB

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