CBSE Class 12-science - Coulomb's Law Videos

• write the coulomb's law
• question no. 7
  
• calculate the distance between two protons if the repulsive force acting between them is equal to weight a proton
• electric charges
  
• explain coulambs law give unit and dimensions of electrostatics constant and coulambs law in vector form with superposition principle
  
• calculate column b force between alpha particles separated by a distance of 3.2 into 10 to the power minus 15 m in air
• Two similar spheres having +Q and -Q charges at a kept distance . F force act on between two.if at the middle of the two sphere another similar sphere having +Q is kept then it experience a force in magnitude and direction as
• what is dielectric current
• There is one charged tiny spherical oil drop and the magnitude of electric field intensity at a point on its surface is E. If n such drops are combined to make a single drop then what will be the net electric field intensity at a point on the surface of the bigger spherical drop. Assume that charge is uniformly distributed over the volume of oil drop.
• the force between two charges at distance r is f what will be the force between these charges if the distance between them is doubled and charges are placed in a medium of dielectric constant 10 ?

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