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the critical temperature above which the ferromagnetic materials lose their magnetic property is known asa
ceramics are good a insulators b conductors c superconductors
bronze is an alloy of a copper b aluminium c silver d carbon ansbronze is an alloy of
the property due to which the resistance of some metal or compound vanishes under certain conditions isa semi
the material with lowest resistivity isa constantan b silverc manganin d
the focal length of a concave spherical mirror is equal to 1 meter what is the radius of curvature of this mirror ansthe radius of curvature of this
assume a ray of light is incident on a smooth reflecting surface at an angle of incidence of 15 degrees to the normal what is the angle between the
explain the properties and application of glassglass ordinary glass is a fine insulator but is too brittle to be used for anything although
give the properties and application of pvcpolyvinylchloride pvc it is replacing rubber to a great extent in veracious applications there is pvc
give a few applications of superconductors also give three applications of superconductorsapplication of superconductors in electrical and electronic
explain the suitability of aluminium that is used as electrical conducting materialsaluminium conductors are appropriate for ambient and very
explain the suitability of copper that is used as electrical conducting materialscopper pure annealed is utilized
explain the effect of a dielectric on the behaviour of a capacitor if two parallel plates are separated by a distance d meters in vacuum and are kept
explain extrinsic semiconductorextrinsic semiconductor an intrinsic semiconductor is able to conduct some current even at room temperature but as
explain intrinsic semiconductorintrinsic semiconductor an extremely pure semiconductor is termed as intrinsic semiconductor but at absolute zero
explain ferrimagnetic magnetic materialsferrimagnetic materials in such materials unequal magnetic dipoles are lined up anti-parallel to each other
explain antiferromagnetism magnetic materialsantiferromagnetism magnetic dipoles are aligned anti-parallel to each other antiferromagnetic type
explain ferrites and its uses in high frequency devicesa group of magnetic alloys show the property of magnetisation that change with percentage of
explain the effect of impurity on the conductivity of a semiconductorto form a semi-conductor conductive a small amount of appropriate impurity is
i am final year chemical engineering student working on a problem paper which has got two questions with a total of 5 parts would you be able to
explain hall effecthall effect if a current carrying conductor is placed in a magnetic field a voltage is produced that acts in the perpendicular
explain ionic polarisation ionic polarisation it takes account of the fact that while some of the atoms in a molecule contain an excess positive or
give some applications of nichromenichrome is an alloy of iron chromium nickel and manganesethis is used for electric iron for making heating
give some applications of manganinmanganin is alloy of nickel copper and manganesethis is used shunts in measuring instruments for making their coils
give some applications of german silvergerman silver is an alloy of zinc nickel and coppergerman silver is used in electrical measuring