51. Ceramic materials are
52. Around the nucleus are orbiting . . . . . . . . that are negative particles.
53. Which one of the following ceramic composite has high melting temperature?
54. On which of the following factors does the value of critical current density in a superconductor depend?
55. The correct sequence of the following in the increasing order of the values of permittivity is
56. Which type of the capacitor should be used in a 1000 V power supply?
57. Superconducting metal in super conducting state has relative permeability of
58. What is the magnetic susceptibility $$\chi $$ of an ideal superconductor?
59. 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
60. The miller indices are the same for
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