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1. If the above sample is n-type and the electron concentration at the location x1 is N(x1)=1016cm-3, what is the drift current density in A/cm2? What is the concentration gradient at this point, dN(x1)/dx?
2. Define and derive the quasi-Fermi energy and potential for a species of ions.
3. Define and derive the quasi-Fermi energy and potential for a species of neutral atoms.
A shiny metallic Christmas ball ornament 5.10 centimeter in diameter is used as a mirror. Obtain what is the mirror focal length
A grandfather's clock is calibrated at a temperature of 22°C. Assume that the pendulum is a thin brass rod of negligible mass with a heavy bob attached to the end. How much does it gain or lose in a 24 h period
A rocket, initially at rest on the ground, accelerates straight upward with a constant acceleration of 30.0 m/s2, until the fuel is used up after 10.40 s. What is the speed of the rocket when it hits the ground
A beam of light is emitted 8.0 cm beneath the surface of a liquid and strikes the surface 7.0 cm from the point directly above the source. If total internal reflection occurs, what can u say about the index of refraction of the liquid?
What is the shortest possible wavelength in the Balmer series. Determine its energy. Determine its wavelength. Find its photon energy. Find its wavelength.
A slit of width 0.19mm is illuminated with monochromatic light of wavelength 632.8 nm. At what angle will the first minimum occur
A flat sheet is in the shape of a rectangle with sides of lengths 0.400m and 0.600m. Find the magnitude of the electric flux through the sheet
A 7.00-kg object undergoes an acceleration given by a with arrow = (3.00 i hat + 7.00 j hat) m/s2.
an electromagnetic wave strikes a 1.91-cm2 section of wall perpendicularly. the rms value of the waves magnetic field
A car drives north at 32mi/h for 10 min and then turns east and goes 5.0 mi at 56mi/h. Finally, it goes southwest at 40mi/h for 6.0 min. Determine its average velocity for this trip
A sound wave in air has a frequency of 500 Hz and a wavelength of 0.68 m. What is the air temperature
A steel beam is suspended completely under water by a cable that is attached to one end of the beam, so it hangs perpendicularly. Another identical beam is also suspended completely under water, but by a cable that is attached to the center of the be..
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