Q201
Open questionWhen a dielectric is subjected to an alternating electric field of angular frequency 'ω', its power loss is proportional to
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ECE · all questionsMaterials And Components
Materials And Components
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Q202
Open questionWhich one of the following is the correct statement?
Superconducting metal in superconducting state has relative permeability of
Superconducting metal in superconducting state has relative permeability of
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Q203
Open questionWhich of the following is not a piezo-electric material?
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Q204
Open questionWhich of the following materials is preferred for transmitting electrical energy over long distance?
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Q205
Open questionThe electronic properties of the nanotube could be changed between metallic and semiconducting simply of varying
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Q206
Open questionWhich of the following has the highest skin depths?
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Q207
Open questionThe type of by-pass capacitor that work best at high frequencies is
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Q208
Open questionThe tolerance of ceramic capacitor is
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Q209
Open questionThe geometrical configuration of one molecule of C60 buckminsterfullerene contains.
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Q210
Open questionThe ratio (where k is the thermal conductivity, σ is the electrical conductivity and T is the temperature) for metals
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Q211
Open questionConsider the following methods in nanoparticle synthesis:
1. Bottom-up
2. Top-down
3. Side-by-side
Which of these methods is/are slow and does/do not conduce to large-scale production?
1. Bottom-up
2. Top-down
3. Side-by-side
Which of these methods is/are slow and does/do not conduce to large-scale production?
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Q212
Open questionThe transition temperature of superconducting material is changed by which one of the following?
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Q213
Open questionIn a solid or liquid dielectric with externally applied electric field, as the interatomic distance increases the internal field Ei,
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Q214
Open questionA semiconductor has generally . . . . . . . . valence electrons.
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Q215
Open questionWhich of the following statements is not true regarding Rochelle salt?
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Q216
Open questionWhich one of the following statements is NOT true?
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Q217
Open questionIn a material characterized by a complex permittivity, the imaginary part is a measure of
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Q218
Open questionHeating a permanent magnet results in the loss of magnetic behavior because
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Q219
Open questionThe evidence for the importance of electron phonon interaction in super-conductors comes from
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Q220
Open questionLaser emission from Ruby crystal is because of transition
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