Explain with the help of diagrams the magnetism in a superconductor when it is cooled in the presence of a magnetic field.
In a superconductor, when cooled below its critical temperature (Tc) in the presence of a magnetic field, it undergoes the _______ __________ __________ __________ __________.
____ ___ _____ ___ _____ ________ _____ _________.
_____ ___ ________ ______ ________ __________ ____ ___ ___ ________.
_____ _____ _______ _____ ________ ______ __________ _________ _____ _____ __________.
___ ________ ___ ___ ______ _____ _______ __________ __________.
________ ______ ________ __________ _________ ________ ___ _________ ______ ___ _______ ____.
________ __________ ________ ________ ______ _______ ____ ___ _______ ________.
_________ ______ _______ ______ _______ ___ ________ __________ ____ _______ __________ ____.
______ ______ ________ ___.
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A germanium crystal with doping of 1018 arsenic atoms per cm3 is required. For initial Ge load of 20 kg, calculate the mass of arsenic to be added. Assume that the value of k0 remains constant throughout the growth process. Consider the density of molten germanium to be 5.7 g cm-3 and atomic weight of arsenic 74.934u.
The first order Bragg reflection angle from the (111) planes in an fcc metal is 19.2° for an x-ray beam with λ = 1.54 Å. Calculate the density of the metal if its atomic weight is 26.98 u.
Explain, with the help of a diagram, the depletion region in a p-n junction.
Calculate the heat capacity of Hf at 200 K, given that its Debye temperature is 242 K.
Calculate the inter-planar distance between the (211) planes for a lattice with lattice constant 3.2 Å.
Niobium with an atomic weight of 92.90 u is characterized by a bcc lattice structure with a lattice constant of 3.30 Å. Calculate the density.
In Hall experiment, the current density due to the applied electric field is 2A m-2 and Hall constant is measured to be - 1.5 10-10 Vm3 A -1 Tesla-1 . Calculate drift velocity of the change carriers.