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dielectric materials area insulating materials b semiconducting materialsc magnetic
phenol and formaldehyde are polymerised to a resultant product known asa pvc
n-type semiconductor is an example ofa extrinsic semiconductor b intrinsic semiconductorc super
gold and silver area dielectric materialsb low resistivity conducting materialsc magnetic materialsd insulating materialsansgold and silver are low
atomic weight of an atom isa sum of the number of protons and neutrons b sum of the number of protons and electrons c sum of the number of electrons
the dielectric constant of air is practically taken asa more than
explain the factors affecting permeability and hysterisis loss factors affecting permeability and hysterisis loss when the initial permeability is
what is meant by doping how does it affect a semiconductor doping the process through which an impurity is added to semiconductor is termed as doping
give the properties and uses of silicon iron alloy and nickel iron alloysilicon iron alloy pure iron has low resistivity that results in higher eddy
explain n-type and p-type semiconductors n - type semiconductor if small amount of pentavalent impurity group v elements is added to a pure
explain the electrical contact materials with exampleselectrical contact materials a number of elements in their pure form as copper nickel palladium
explain piezoelectricitypiezoelectricity it gives us a means of converting electrical energy to mechanical energy and vice versawhile an electric
explain ferroelectricityferroelectricity- materials of ferroelectric have a high dielectric constant that is non-linear that is this depends to a
give the names of four alloys along with their composition which are used for making heater and thermocouple elementsconstantan or eureka 55 to 60
give the properties and application of cottoncotton it is base material for insulating fibrespropertiesit can be enhanced by impregnating with
what is polarisation explainwhile a dielectric material is related an electric field the dipoles of the material find oriented in a certain direction
explain superconductivity and explain the effect of magnetic field on superconductorsvarious metals become superconducting below a temperature that
discuss the properties and uses of alnicoalnico it is an alloy of iron nickel cobalt and small amount of copper and aluminiumproperties are -1 its
can you explain working principle of tlac alternator ans the core of the stator which is completely induced by the field coils will get a residual
discuss the properties and uses of cold rolled grain oriented steelcold rolled grain oriented steel grain orientation of silicon steel is
explain magnetostrictionmagnetostriction if ferromagnetic materials are magnetized a small change of dimensions of the material obtains place there
explain eddy currentseddy currents magnetic materials placed as in alternating magnetic fields have eddy currents also induced in them it is because
give a short description of soft ferritessoft ferrites and their applications all non- metallic compounds are consisting of ferric oxide and one or
explain bimetalsbimetals it is made of two metallic strips of not like metal alloys with various coefficients of thermal expansion at a specific
explain conduct insulation resistance test on 100 va inverter used for mobile and laptop charging socketsans the insulation resistance of the