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Permeability And Permittivity Of Air Experiment

Permeability And Permittivity Of Air Experiment

Product Details:

  • Dimension(L*W*H) Parallel plate: 12.5cmx12.5cmx0.8mm (LxWxT),
  • Voltage 220 V,50Hz
  • Material Aluminium
  • Application Lab Equipment
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Product Specifications

  • Lab Equipment
  • Parallel plate: 12.5cmx12.5cmx0.8mm (LxWxT)
  • Aluminium
  • 220 V,50Hz

Product Description


Repulsive forces between two current carryingconductors, which is very small, is measured using a very sensitive balancetechnique based on a diode laser, scale and fractional weights to form anoptical lever. This measurement is used to calculate permeability of air.Similarly small attractive forces between two charged capacitor plates ismeasured. This measurement is used to calculate the permittivity of air.  An indirect estimate of the speed of light canbe made from the experimental values of permeability and permittivity whichverifies the relationship.


  • High current power supply.
  • High voltage DC power supply.
  • Very sensitive coulomb and current balance.
  • Diode laser based optical lever.


  • To measure the force between current carryingconductor and determine the permeability of air
  • To measure the force of attraction betweencharged capacitor plates and determine the permittivity of air.
  • To verify the relationship of speed of lightwith permeability and permittivity of air.


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