Subject and UNIT: Electromagnetic Theory: Unit II: (b) Conductors, Dielectrics and Capacitance
• Let us consider the boundary between two perfect dielectrics. One dielectric has permittivity Ɛ1 while the other has permittivity Ɛ2.
Subject and UNIT: Electromagnetic Theory: Unit II: (b) Conductors, Dielectrics and Capacitance
• Consider a boundary between conductor and free space. The conductor is ideal having infinite conductivity. Such conductors are copper, silver etc.
Electrostatics
Subject and UNIT: Electromagnetic Theory: Unit II: (b) Conductors, Dielectrics and Capacitance
The conditions existing at the boundary of the two media when field passes from one medium to other are called boundary conditions.
Subject and UNIT: Electromagnetic Theory: Unit II: (b) Conductors, Dielectrics and Capacitance
• It is seen that the conductors have large number of free electrons while insulators and dielectric materials do not have free charges. The charges in dielectrics are bound by the finite forces and hence called bound charges.
Derivation, Equation, Solved Example Problems | Electrostatics
Subject and UNIT: Electromagnetic Theory: Unit II: (b) Conductors, Dielectrics and Capacitance
• The medium is called homogeneous when the physical characteristics of the medium do not vary from point to point but remain same everywhere throughout the medium.
Definitions, Formulas, Resistance, Properties, Solved Example Problems
Subject and UNIT: Electromagnetic Theory: Unit II: (b) Conductors, Dielectrics and Capacitance
The moving electrons strike the adjacent atoms and rebound in the random directions. This is called drifting of the electrons.
Electrostatics
Subject and UNIT: Electromagnetic Theory: Unit II: (b) Conductors, Dielectrics and Capacitance
• The current flows outwards from the closed surface. It has been mentioned earlier that the current means the flow of positive charges.
Solved Example Problems | Electrostatics
Subject and UNIT: Electromagnetic Theory: Unit II: (b) Conductors, Dielectrics and Capacitance
A current of 1 ampere is said to be flowing across the surface when a charge of one coulomb is passing across the surface in one second.
Conductors, Dielectrics and Capacitance
Subject and UNIT: Electromagnetic Theory: Unit II: (b) Conductors, Dielectrics and Capacitance
• It is known that the flow of charges constitutes an electric current. The current can be measured by measuring how many charges are passing through a specified surface or a point in a material per second.
Electromagnetic Theory
Subject and UNIT: Electromagnetic Theory: Unit II: (b) Conductors, Dielectrics and Capacitance
Electromagnetic Theory: Unit II: (b) Conductors, Dielectrics and Capacitance : Syllabus, Contents
Electric Work Potential and Energy | Electromagnetic Theory
Subject and UNIT: Electromagnetic Theory: Unit II: (a) Electric Work Potential and Energy
Electromagnetic Theory: Unit II: (a) Electric Work Potential and Energy : University Questions with Answers (Long Answered Questions)
Electric Work Potential and Energy | Electromagnetic Theory
Subject and UNIT: Electromagnetic Theory: Unit II: (a) Electric Work Potential and Energy
Electromagnetic Theory: Unit II: (a) Electric Work Potential and Energy : Two Marks Questions with Answers