As the atoms of rare gases become larger, electronic polarizability
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Materials And Components
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Hall effect is observed in a specimen (metal or semi conductor) when it is carrying current and is placed in a magnetic field. The resultant electric field inside the specimen is
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The phenomenon of dielectric hysteresis occurs with
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When a dielectric material is subjected to alternating field, the absorption of energy by the material from the field is given by the imaginary part of polarizability.
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The unit for mmf is
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When a material is in superconducting state and a magnetic field is applied
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The characteristic impedance of coaxial cable depends on
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Consider the following statements relating to piezoelectric materials and their effects:
1. Stress applied to the material produces electric polarization
2. An electric field applied to the material produces strain in it
3. All piezoelectric material are also ferroelectric materials
Which of the statements given above are correct?
1. Stress applied to the material produces electric polarization
2. An electric field applied to the material produces strain in it
3. All piezoelectric material are also ferroelectric materials
Which of the statements given above are correct?
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The detailed information regarding the mechanism of fracture is available from microscopic examination, normally using scanning electron microscopy, and its study is termed as
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In an intrinsic semiconductor-
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Ceramic materials are
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Around the nucleus are orbiting . . . . . . . . that are negative particles.
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Which one of the following ceramic composite has high melting temperature?
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On which of the following factors does the value of critical current density in a superconductor depend?
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The correct sequence of the following in the increasing order of the values of permittivity is
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Which type of the capacitor should be used in a 1000 V power supply?
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Superconducting metal in super conducting state has relative permeability of
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What is the magnetic susceptibility of an ideal superconductor?
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A very low temperature, where resistivity of certain materials abruptly plunges from a finite value to one that is virtually zero and remains there upon further cooling, is called
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The miller indices are the same for
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