41. As the atoms of rare gases become larger, electronic polarizability
42. 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
43. The phenomenon of dielectric hysteresis occurs with
44. 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.
45. The unit for mmf is
46. When a material is in superconducting state and a magnetic field is applied
47. The characteristic impedance of coaxial cable depends on
48. 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?
49. The detailed information regarding the mechanism of fracture is available from microscopic examination, normally using scanning electron microscopy, and its study is termed as
50. In an intrinsic semiconductor-
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