High-pass and low-pass filters with Cobra4 Xpert-Link

A coil, a capacitor, an ohmic resistance and combinations of these components are investigated for their filter characteristics as a function of frequency. The phase displacement of the filters is determined also as a function of frequency.

  • Simple and very clear set-up: only few components required
  • Cost savings: No need for an additional power supply
  • Simplified implementation: all pre-settings already prepared
  • The software controls all devices simultaneously
  • Further experiments in electricity and electronics can be performed with the equipment

PHYWE Digital Function Generator, USB
Resistor 1 kOhm, 1W, G1
Resistor 47 Ohm, 1W, G1
Capacitor 1 microF/ 100V, G2
Capacitor 2,2microF/ 100V, G2
Short-circuit plug, white
Connection box
Coil, 300 turns
Cobra4 Xpert-Link
Cobra4 Xpert-Link set of cables

  1. RC/CR network,
  2. RL/LR network,
  3. CL/LC network,
  4. Two CR networks connected in series
  • Circuit
  • Resistance
  • Capacitance
  • Inductance
  • Capacitor
  • Coil
  • Phase displacement
  • Filter
  • Kirchhoff’s laws
  • Bode diagram

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Product number

P2440964