PHS

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Created by
Wolf Vandex

Cards (25)

  • Coulomb's Law states that the electrostatic force of attraction or repulsion between two charges is proportional to the magnitude of their charges and inversely proportional to the square of their distance apart.
  • French Physicist Charles Coulomb (1836-1906) studied the magnitude of this force using a TORSION BALANCE
  • The proportionality constant value k is 9.0×10^9
  • charge on the electron is 1.602×10^-19 C
  • Charge on the proton is 1.6×10^-19
  • Electric flux is the number of electric field lines passing through a surface.
  • Electric flux is also defined as the product of Electric field intensity and the area perpendicular to the field.
  • Proof plane is a device that is used to transfer charges from one body to another.
  • An Electrophorus is a device used to produce an unlimited amount of charges by electrostatic induction.
  • Van de graaf generator is a device used to continuously separate positive and negative charges thereby building up a large potential difference.
  • Vandegraaf generator can be used to power devices that require high Potential Difference e.g X-ray Tube, Atomic bombardment machine
  • Gauss law states that the total flux emanating from a surface enclosing a charge is the ratio of the quantity of charge enclosed to permittivity.
  • Point charges are defined as small charge bodies whose sizes are much smaller than the distances between them.
  • Basically, Gauss' law is the ratio of quantity of charge to permittivity
  • Electric field lines originate from the positive charges and terminate only on the negative charges.
  • Mass of electrons is 9.11×10^-31kg
  • Mass of protons is 1.7×10^-27
  • The fundamental law of electrostatics states that like charges repel whilst unlike charges attract.
  • Line charge density is the ratio of the quantity of charge to the length of the conductor.
  • Surface charge density is the ratio of quantity of charge to the surface area of the body.
  • Volume charge density is the ratio of the quantity of charge to the volume of the conductor.
  • Permittivity of free space is 8.85×10^-12 F/m
  • Electric field Intensity/Strength is also called Electric Flux Density or Electric Potential Gradient.
  • Electric Field Strength (E) = Voltage per unit distance
  • The SI Unit of electric field strength is Newton per Coulomb(N/C)