Q5. Explain why when D is tangential to the surface, D.ds = O. * Because of the boundary condition between a dielectric surface to charged surface has no tangential component Because Gauss's law is an alternative formulation to obtain electric flux density and electric field intensity by the relation with electric charge Because of Divergence theorem and Stoke theorem prove so Because when D only has normal component for charge surface

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Q: Express Gauss's law in electrostatics in integral form.

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Electric field

A physical field present around an electrically charged particle that exerts a force on all other charged particles is called an electric field. The charged particles present in the field either repel or attract. From electric charges or time-varying magnetic fields, the electric field originates. One of the manifestations of electromagnetic force which is one of the four fundamental forces present in nature are the electric fields and magnetic fields.