Coulomb’s law


  • Parallel plates with diameter 150mm

  • Parallel plates with diameter 125mm

  • Micrometer

  • Digital balance

  • High voltage power supply 15000V

  • High voltage connection cables

  • Safety holder for the two plates  


In this experiment, we can study the coulomb’s law which states that the magnitude of the Electrostatics force of interaction between two point charges is directly proportional to the scalar multiplication of the magnitudes of charges and inversely proportional to the square of the distances between them

To measuring coulomb’s force by high voltage on the parallel plates electrode and an electric balance beam.





Verify the Inverse Square Law: F ~ 1/R2

Verify the Force/Charge Relationship: F ~ q1q2