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describe in detail about the cytoplasmcytoplasm also possesses a number of dense granular elements about 25000 per cell called the ribosomes which
state the basic properties of cellthe differences of cell types notwithstanding the similarities among them are more profound actually all cells
determine the architecture of cellthere are over 200 types of cells in the human body which are assembled into a variety of tissues such as the
what are the objectives of heat treatment of metals objectives of heat treatment- cause relief of internal stresses developed during cold working
state the term - ferritesferrites are used as ferromagnetic materials for high frequency applications like tv tubes memory devices high-speed
determine about the antiferromagnetic materialsantiferromagnetic materials are materials in which almost all magnetic dipoles are linked up
describe about the ferromagnetic materialsferromagnetic materials are those for which k susceptibility is large and positive these are strongly
illustrate how a high initial permeability in fe-ni alloys helps to reduce the area under hysteresis loop the most favourably oriented fully-grown
how does b-h hysteresis curve be understood in terms of domain growth and domain rotation there are two possible ways to align a random domain
what are different applications in which piezoelectricity is usedapplications- piezoelectric materials serve as a source of ultrasonic waves at sea
what is piezoelectricitypiezoelectricity provides us a means of converting electrical energy to presume new geometric positions and mechanical
concentration of electrons in the conduction bandat equilibrium there is no net current flowing across p-n junction concentration of electrons in the
explain why nichrome and not copper is used as heating element whereas manganin is used as standard resistancefor heating elements primary
discuss effect of impurity temperature and alloying on the electricity conductivity of metalfor an ideal crystal with no impurities and imperfections
what are the main sources of electrical resistance in a metal the factors which affect electrical resistance of a metal are impurity temperature and
explain experimental evidence to demonstrate the existence of ferromagnetic domainstemperature increases thermal motion or entropy competes with
explain curie point and hystereris an ordinary piece of iron generally has little or no net magnetic moment though if it is placed in a strong enough
describe the mechanism of ferromagnetismferromagnetism is the basic mechanism by which certain materials like iron form permanent magnets orand
discuss about the term - photolithography photolithography also known as optical lithography which is one of the kinds of lithography is a process
explain in detail about the chemical vapaor depositionchemical vapaor deposition cvd is a chemical process used to produce high-purity
what are the stages of heat treatment processall heat treatment processes comprises 3-main stepsi heating of metalalloy to the predetermined
illustrate objectives of heat treatment processesheat treatment is normally adopted for the followingi to refine grain structureii to improve
explain about the impact extrusion blank is placed over the die and pressed by punch metal is squirted upward round the punch thickness of the part
what is tube extrusion billet is placed inside a container between die and mandel mandel is pressed by ram and metal is extruded through the die this
define the both - direct extrusion and indirect extrusiondirect extrusion billet is placed in a container and forced through the die by a