Tuesday 29 September 2015

Electricity and Magnetism BPH-301 Sessional

Q1.What do you mean by electric field intensity?Derive an expression for the electric field intensity at any point due to an electric dipole.

Q2.a)State and prove Gauss's Law in electrostatics.
      b)Derive Coulomb's Law from Gauss's Law.

Q3.Use Gauss's law to calculate the electric field intensity due to a uniformly charged sphere at a point
i)outside the surface
ii)on the surface
iii)inside the surface

Q4.What do you understand by a dielectric and dielectric constant of a material?
Explain three vectors E,P,D and establish a relation among them.

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