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MHT-CET : Physics Entrance Exam

MHT - CET : Physics - Electrostatics Glossary

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         Lines of Force: An imaginary line drawn in an electric field such that the tangent drawn to the line of force at any point gives the direction of the electric field at that point.

         Electric Flux: The electric flux through a point is defined as the product of area and the component of electric intensity normal to the area.

         Tube of Force: A tubular shape bounded by a group of lines of force starting from an area A1 of a positively charged surface and ending on an area A2 of a negatively charged surface.

         Tube of Induction: In a medium other than air or vacuum, a tube of force is called a tube of induction.

         Electric Induction: The number of tubes of induction passing normally through unit area around a point in the electric field is called the normal electric induction.

         Gaus's Theorem: Gaus's theorem states that the total normal electric induction over a closed surface is equal to the net electric charge enclosed by the surface.

         Capacitance (or Capacity): Capacitance of a conductor is the ratio of its charge to its potential.

         Farad: It is the unit of capacitance in the S.I. system. It is the capacitance of a conductor whose potential increases by one volt when it is given a charge of one coulomb.

         Capacitor (Condenser): An arrangement of two conductors separated by an insulating medium.

         Coulomb's Law: Coulomb's law states that the force of interaction between two point charges is directly proportional to the product of the magnitude of the two charges and is inversely proportional to the square of the distance between them.

         Electric Intensity (E): The electric intensity at a point in an electric field is defined as the force acting on unit positive charge placed at that point.

         Electric Potential(V): The electric potential at a point in an electric field is defined as the work done in bringing unit positive charge from infinity to that point.

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