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3.9k
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Draw energy band diagram of an unbiased p-n junction and mark the barrier potential and depletion region.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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1
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9.6k
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Fermi level in K is 2.1 eV. What are energies for which the probabilities of occupancy at 300K are 0.99 and 0.01 ?
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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1
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1.7k
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What is Fermi level in semiconductor? Show that in intrinsic semiconductor Fermi level always at the middle between the forbidden energy gap?
engineering physics updated 4.9 years ago by teamques10 ★ 70k
0
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742
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Explain the formation of depletion region in P-N junction.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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1
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2.4k
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Identify the crystal structure if its density is 9.6 x 102 kg/m3, lattice constant is 4.3 A? and atomic weight is 23.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
0
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615
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1
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What is dielectric polarization and dielectric susceptibility? Find the relation between them?
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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1
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1.4k
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1
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What is mesomorphic state of matter ? Explain with neat diagram cholesteric phase.
engineering chemistry updated 4.9 years ago by teamques10 ★ 70k
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1.0k
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1
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Define ligancy and critical radius ratio in case of ionic solid. Write the conditions for stability of ionic crystal in 3-D ? Determine critical radius ratio for ligancy 6.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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1
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1.7k
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Explain the hall effect in metal ? Derive the formulae to determine the density and mobility of the electrons.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
0
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1
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632
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1
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What is magnetic circuit? Explain Ohm's Law on case of magnetic circuit.
circuit transmission lines updated 4.9 years ago by teamques10 ★ 70k
0
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1
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866
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1
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State with neat diagram direct and inverse Piezoelectric effect.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
0
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1
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926
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1
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Define drift current, diffusion current and mobility of charge carriers.
analog electronics updated 4.9 years ago by teamques10 ★ 70k
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503
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1
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Represent the following in the cubic unit cell :- (IT2), (002), [121]
engineering physics updated 4.9 years ago by teamques10 ★ 70k
0
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935
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Find the interplaner spacing between the family of planes (111) in a crystal of lattice constant 3A?.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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1.1k
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1
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Define the term space lattice, unit cell and lattice parameter.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
0
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1
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519
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1
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Explain the formation of barries potential in P-N Junction.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
0
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1
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1.1k
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1
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Explain piezoelectric oscillator to produce USW?
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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1
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892
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1
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Explain with neat diagram Hysterisis effect in ferromagnetic material.
integrated circuits updated 4.9 years ago by teamques10 ★ 70k
2
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1
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6.1k
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1
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If the x-rays of wavelength 1.549 Ao will be reflected from crystal having spacing of 4.255 Ao, calculate the smallest glancing angle and highest order of reflection that can be observed.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
0
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1
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899
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1
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Explain with neat diagram construction and working of solar cell.
engineering chemistry updated 4.9 years ago by teamques10 ★ 70k
0
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1
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856
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1
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Mention different types of polarizability in a dielectric? Explain electorinc polarizability?
analog electronics updated 4.9 years ago by teamques10 ★ 70k
1
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1
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1.3k
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1
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What is liquid crystal state of matter? Draw the diagram to descibe molecular arrangement in their different phases?
engineering physics updated 4.9 years ago by teamques10 ★ 70k
0
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1
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826
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1
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The magnetic field strength of cooper is 1016 ampere / metre. And magnetic susceptibility is -0.8 x 10-3. Calculate magnetic flux density ad magnetisation in cooper.
circuit transmission lines updated 4.9 years ago by teamques10 ★ 70k
0
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1
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2.8k
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1
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Derive the Bragg's law and describe the powder method to determine crystal structure of powdered specimen.
engineering physics updated 4.9 years ago by teamques10 ★ 70k
0
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1
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1.4k
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1
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Explain Dimond crystal structure with proper diagram and determine its APF?
engineering physics updated 4.9 years ago by teamques10 ★ 70k
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