Module 2 : Electrostatics
Lecture 10 : Poisson Equations
 
   Recap
   In this lecture you have learnt the following

Poisson's equation relates the potential to charge density. A formal solution to Poisson's equation was obtained.

A equipotential surface is one on which the potential is constant. The electric field on an equipotential surface can

  only have component normal to the surface.

The potential of a conductor is proportional to the charge it contains, the constant of proportionality is known as the

  capacitance of the conductor. A capacitor is a device to store charges and hence it also stores electrostatic energy.

The capacitance for a parallel plate capacitor is proportional to the surface area and inversely proportional to the

  separation between its plates.

Capacitance for spherical and cylindrical capacitors were calculated. The work done in charging a capacitor was

  also calculated.
 

 

Congratulations! you have finished Lecture-10. To view the next Lecture select it from the left hand side of the page.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
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