Capacitance Experiment

This student experiment measures the voltage across capacitor plates, while varying the distance and insulating materials. This complete solution is designed for use with PASCO Capstone Software.

In this experiment designed for use with PASCO Capstone software, the lab explores the effect of varying the plate distance and insulating dielectric materials in a variable flat plate capacitor. Students also acquire data that allows the calculation of an experimentally derived value for the permittivity constant.

The Electrometer used in this experiment makes it possible to measure the voltage across the capacitor plates without discharging the capacitor since it has an internal resistance of 1014 ohms.

Concepts Covered:

  • Capacitance
  • Parallel Plate Capacitor
  • Factors Affecting Capacitance

Manipulation of the computer model allows measurement of the capacitance of the connecting cables and the charge on the system.

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