Ask
Login
TAGGED IN

Engineering Physics

Follow this tag to get notifications whenever a new post is added

ALL TAGS
0
votes
1
answer
1.1k
views
1
answer
State the terms : magnetostriction effect; piezoelectric effect
engineering physics updated 3.5 years ago by teamques10 ★ 68k
0
votes
1
answer
1.1k
views
1
answer
What is the probability of an electron being thermally excited to conduction band in silicon at 20oC. The band gap energy is 1.12eV; Boltzmann constant is 1.38 x 10-23 JIk.
engineering physics updated 3.5 years ago by teamques10 ★ 68k
0
votes
1
answer
678
views
1
answer
Explain term lattice parameters of cubic crystal.
engineering physics updated 3.5 years ago by teamques10 ★ 68k
0
votes
1
answer
890
views
1
answer
What is piezoelectric effect. Explain the working of piezoelectric Oscillator used to produce ultrasonic wave.
engineering physics updated 3.5 years ago by teamques10 ★ 68k
0
votes
1
answer
800
views
1
answer
How is a p-n junction diode used to generate a potential difference in photovoltaic solar cell ?
engineering physics updated 3.5 years ago by teamques10 ★ 68k
0
votes
1
answer
1.2k
views
1
answer
Explain difference between three liquid crystals w.r.t the order in arrangement of molecules with the help of diagram. Which property of liquid crystal is used for display?
engineering physics updated 3.5 years ago by teamques10 ★ 68k
0
votes
1
answer
1.4k
views
1
answer
Define reverberation time . Write sabine's formula explaining each term. What are the factors which determine average absorption co-efficient of a material
engineering physics updated 3.5 years ago by teamques10 ★ 68k
1
vote
1
answer
4.6k
views
1
answer
Explain the principle, construction and working of a magnetostriction oscillator to produce ultrasonic waves.
engineering physics updated 3.5 years ago by teamques10 ★ 68k
0
votes
1
answer
2.4k
views
1
answer
In an n-type semiconductor the fermi level lies 0.4eV below conduction band. If concentration of donor atom is doubled, find the new position of the Fermi Level w.r.t. the conduction band.
engineering physics updated 3.5 years ago by teamques10 ★ 68k
0
votes
1
answer
619
views
1
answer
Derive Bragg's law. Explain why x-rays and not ? rays are used for crystal structure analysis. What data about crystal structure can be obtained from the x-ray diffraction pattern of a crystal?
engineering physics updated 3.5 years ago by teamques10 ★ 68k
0
votes
1
answer
2.1k
views
1
answer
Calculate the change in intensity level the intensity of sound increases 1000 times its original intensity.
engineering physics updated 3.5 years ago by teamques10 ★ 68k
0
votes
1
answer
3.1k
views
1
answer
Draw energy band diagram of an unbiased p-n junction and mark the barrier potential and depletion region.
engineering physics updated 3.5 years ago by teamques10 ★ 68k
0
votes
1
answer
7.6k
views
1
answer
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 3.5 years ago by teamques10 ★ 68k
0
votes
1
answer
1.3k
views
1
answer
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 3.5 years ago by teamques10 ★ 68k
0
votes
1
answer
426
views
1
answer
Explain the formation of depletion region in P-N junction.
engineering physics updated 3.5 years ago by teamques10 ★ 68k
0
votes
1
answer
2.2k
views
1
answer
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 3.5 years ago by teamques10 ★ 68k
0
votes
1
answer
433
views
1
answer
What is dielectric polarization and dielectric susceptibility? Find the relation between them?
engineering physics updated 3.5 years ago by teamques10 ★ 68k
0
votes
1
answer
786
views
1
answer
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 3.5 years ago by teamques10 ★ 68k
0
votes
1
answer
1.5k
views
1
answer
Explain the hall effect in metal ? Derive the formulae to determine the density and mobility of the electrons.
engineering physics updated 3.5 years ago by teamques10 ★ 68k
0
votes
1
answer
620
views
1
answer
State with neat diagram direct and inverse Piezoelectric effect.
engineering physics updated 3.5 years ago by teamques10 ★ 68k
0
votes
1
answer
407
views
1
answer
Represent the following in the cubic unit cell :- (IT2), (002), [121]
engineering physics updated 3.5 years ago by teamques10 ★ 68k
0
votes
1
answer
754
views
1
answer
Find the interplaner spacing between the family of planes (111) in a crystal of lattice constant 3A?.
engineering physics updated 3.5 years ago by teamques10 ★ 68k
0
votes
1
answer
797
views
1
answer
Define the term space lattice, unit cell and lattice parameter.
engineering physics updated 3.5 years ago by teamques10 ★ 68k
0
votes
1
answer
373
views
1
answer
Explain the formation of barries potential in P-N Junction.
engineering physics updated 3.5 years ago by teamques10 ★ 68k
0
votes
1
answer
695
views
1
answer
Explain piezoelectric oscillator to produce USW?
engineering physics updated 3.5 years ago by teamques10 ★ 68k
<prev • 580 results • page 13 of 24 • next >