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Obtain Amperes circuital law for static magnetic field in differential and integral form.
engineering physics updated 3.2 years ago by pedsangini276 • 4.8k
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Explain top down and bottom up approaches in nanotechnology.
engineering physics updated 3.2 years ago by pedsangini276 • 4.8k
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Draw the schematic diagram of SEM and explain its construction and working.
engineering physics updated 3.2 years ago by pedsangini276 • 4.8k
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Explain the origin of electronic, ionic and orientational polarization and temperature dependence of respective polarizability.
engineering physics updated 8.8 years ago by teamques10 ★ 69k
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What is magnetic circuit? Explain Ohm's law in case of magnetic circuit.
engineering physics updated 7.2 years ago by teamques10 ★ 69k
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Differentiate between soft and hard magnetic materials.
engineering physics updated 8.8 years ago by teamques10 ★ 69k
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In the Newtons ring experiment, determine the diameter of the $20^{th}$ ring if the diameters of the $4^{th}$& $12^{th}$ rings are 0.4 & 0.7 cm respectively.
engineering physics updated 3.2 years ago by pedsangini276 • 4.8k
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Fermi Energy for silver is 5-5eV. Find out energy for which the probability of occupancy at 300 K is 0.9.
engineering physics updated 8.8 years ago by teamques10 ★ 69k
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8. Draw the energy band diagram of an unbiased p-n junction and mark the barrier potential and depletion region.
engineering physics updated 8.8 years ago by teamques10 ★ 69k
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Define Reverberation Time. Write Sabine's Formula and explain the terms in it.
engineering physics updated 8.8 years ago by teamques10 ★ 69k
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How a p-n junction diode is used to generate a potential difference in a photovoltaic solar cell. OR Explain the use of p-n junction as a solar cell.
engineering physics updated 8.8 years ago by teamques10 ★ 69k
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State the terms: magnetostriction effect; piezo-electric effect.
engineering physics updated 8.8 years ago by teamques10 ★ 69k
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Explain the absorption coefficient of a hall. Calculate the change in intensity level when the intensity of sound increases 1000 times its original intensity.
engineering physics updated 8.8 years ago by teamques10 ★ 69k
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Define reverberation time. Write Sabine's formula explaining every term. What are the factors which determine the average absorption coefficient of a material?
engineering physics updated 8.8 years ago by teamques10 ★ 69k
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In an n type semiconductor the Fermi level lies 0.4 eV below conduction band. If the concentration of donor atom is doubled, find the new position of the Fermi level w.r.t. the conduction band.
engineering physics updated 8.8 years ago by teamques10 ★ 69k
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State with neat diagram direct and inverse piezoelectric current
engineering physics updated 8.8 years ago by teamques10 ★ 69k
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Define reverberation time. State Sabine's formula and explain the terms in it.
engineering physics updated 8.8 years ago by teamques10 ★ 69k
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An ultrasonic sound wave is used to detect the position of defect in a steel bar of thickness 50 cm. If the echo times are 40 and 90 s, locate the position of defect.
engineering physics updated 8.8 years ago by teamques10 ★ 69k
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Draw the energy level diagram to show the effect of (i) Temperature (ii) Impurity atom concentration in low range (iii) Impurity atom concentration in high range.
engineering physics updated 8.8 years ago by teamques10 ★ 69k
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Draw the structure of quartz crystal and explain its various axes.
engineering physics updated 8.8 years ago by teamques10 ★ 69k
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State and explain Ohms law in magnetic circuit.
engineering physics updated 8.8 years ago by teamques10 ★ 69k
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State the acoustic requirements of a good auditorium. Explain how these requirements can be achieved.
engineering physics updated 8.8 years ago by teamques10 ★ 69k
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3.2k
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Explain piezoelectric oscillator to produce USW.
engineering physics updated 8.8 years ago by teamques10 ★ 69k
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36k
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State the acoustic requirement of good auditorium. Explain how these requirements can be achieved.
engineering physics updated 8.8 years ago by teamques10 ★ 69k
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Explain construction and working of a solar cell.
engineering physics updated 8.8 years ago by teamques10 ★ 69k
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