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explain conduct insulation resistance test on 100 va inverter used for mobile and laptop charging socketsans the insulation resistance of the
discuss description of insulating materials on the basis of physical and chemical structureinsulating materials on the basis of their physical and
what are the cautions to be taken before starting work on electrical installationsans before starting any electrical works on installations
what is the importance of the concept of continuum in engineering thermodynamicssol tough the simplification of matter into atoms electrons molecules
explain brass and bronzebrass-it is an alloy of copper and zinc with 60 percent copper and 40 percent zinc its electrical resistivity of brass is 70
what is the effect of overheating on the life of an electric insulatoran insulator is designed to withstand amount of heat however when an insulator
explain resistivityresistivity resistance r of a wire containing cross-sectional area a and length l maintain the relationship - r alpha l and r
discuss the advantages and disadvantages of aluminium as compared to copper as a conductor of electricityadvantagesaluminium as a conductor of
explain properties and application of copperproperties1 cooper is reddish brown in color2 cooper is malleable and ductile and can be forged cast
explain properties and application of aluminiumproperties of aluminium1 pure aluminium in colour is silver white2 aluminium is a ductile metal and
why earthing is required for any electrical equipments domestic installation and service building etc for tl coaches what is the minimum ir value
explain factors that change the resistivity of conducting materialstemperature- electrical resistance of most metals rises with increase of
explain macroscopic approach - thermodynamics1 in this method a fixed quantity of matter is considered without taking into account the events taking
explain the principle of a thermocouple give two examples of some common thermocouplesthermocouples they are used for the measurement of temperature
name the materials used in case of bimetals and give reasons bimetals alloy of nickel and iron along with low value of coefficient of thermal
define phasea phase is a quantity of matter that is homogeneous during in chemical composition and physical structure determine if the matter is all
name the materials used in case of solder and give reasons solder for soft solders tin lead in 50-50 ratio alloy and for hard solders copper- zinc
name the materials used in case of fuses also give reasons fuses for rewirable fuses copper-tin and lead-tin alloy is used for hrc and cartridge
explain thermodynamics systemin thermodynamics the system is illustrated as the quantity of matter or region in space upon which the concentration is
what is the effect of temperature on conductivity of semiconductorelectrical conductivity of semiconductor changes appreciably along with temperature
give the properties and application of asbesto asbestos it is inorganic fibrous material two kinds of asbestos are availablechrysotile asbestos this
explain the heterogeneous system - thermodynamicheterogeneous system a system which involves two or more phase is known as heterogeneous system such
explain the homogeneous system - thermodynamichomogeneous system a system which contains a single phase is known as homogeneous system such as
give the properties and application of glassglass - it is an inorganic material made by the fusion of various metallic oxides the properties of glass
explain the adiabatic system - thermodynamicadiabatic system a system along with adiabatic walls can just only exchange work and not heat with the