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explain ionic polarizationionic polarization is polarization that is caused by relative displacements between negative and positive ions in ionic
explain electric polarizationelectric polarization this polarization density is the vector field such expresses the density of permanent or induced
explain the different types of polarizationspolarizations are of three typesi electric polarizationii ionic polarizationiii dipolar
explain einstein relationeinstein relationthere exists a significant relation between the diffusion constant and the mobility it is termed as the
write shorte note on carboncarbon the rate of commutator wear in electrical machines is greatly decreased by using brushes made of carbon carbon c is
write short note on dielectric constantall insulation material has the capacity to store charge while placed in among two conducting plates as in
discuss applications of dielectrics application of dielectricsfor various applications various properties of dielectric materials are required as
explain polymers and their applicationspolymeric materials or plastics contain a large group of organo or organic metallic high molecules compound
explain electrical contact materialselectrical contact materials some elements in their relatively pure forms as copper nickel molybdenum palladium
explain iron and silicon iron alloys iron galvanised steel and iron wires that are usually used for earth conductor in low voltage distribution
explain polarizationpolarization a dielectric has molecules the atomic nuclei of that are effectively fixed related to each other in absence of any
explain temperature dependence of electrical resistivity and conductivity in semiconductors the electrical conductivity of the semiconductors changes
explain temperature dependence of electrical conductivity and resistivity in conductorswhen the temperature is increased there is a greater thermal
explain the properties of high resistivity materialshigh resistivity materials the conducting materials containing resistivity from 10-6 to 10-3
explain the properties of low resistivity materialslow resistivity materials the conducting materials containing resistivity from 10-8 to 10-6 ohm-m
discuss classification of conducting materials into low resistivity and high resistivity materialsconducting materials are categorized as low
what are the important requirements of a good insulating materialimportant requirements of good insulating materials-the necessity of good insulating
what is meant by doping doping semiconductors in its extremely pure form are termed as intrinsic semiconductor such intrinsic semiconductor to which
q what do you mean by dearness allowanceans dearness allowance is in the type of compensation for established increase in the cost of living and
can you explain honorariumans honorarium is a remuneration for work performed which is intermittent or occasional in character and either so
q if a single phase motor fails to run or start slow what action to be takenans if it is not starting check the supply and test the winding if it
q cause of sparking at the brushes of a dc motorans sparking at the brushes can be occur due to poor quality of carbon brushes loose connection poor
q how do you modify the direction of rotation of a dc motorans the direction of rotation of dc motor will be changed either by changing the field
explain procedure to take shut down and to test the power line before starting workans study the circuit and find out the circuit breaker to be
what are the basic duties of sub-station operatorans sub station operator is responsible for safe and proper operation of all electrical equipments