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The electron concentration in a doped silicon sample at T=300K is n0 = 5x104 cm-3.
a) Decide the whole concentration, p0. Is this material n-type or p-type?
b) Discover the position of the Fermi level.
an aluminum wire carrying a current of 4.0a has a cross-sectional area of9.010-6m2. find the drift speed of the
In some places, insect "zappers," with their blue lights, are afamiliar sight on a summer's night. These devices use a highvoltage to electrocute insects.
An asteroid is discovered to have a tiny moon that orbits it in a circular path at a distance of 117 km and with a period of 51.0 h. Find the escape velocity from the asteroid
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Suppose that a particle accelerator is used to move two beams of particles in opposite directions. In a particular region, electrons move to the right at 9350 m/s and protons move to the left at 1681 m/s. The particles are evenly spaced with 0.085..
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A circular loop of conducting wire, with radius a and resistance R, is placed in a magnetic field. Find an expression for the induced current in the loop as a function of time
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Suppose you have a 9.00 V battery, a 2.2uF capacitor, and a 9.05uF capacitor. Find the total charge stored in the system if the capacitors are connected to the battery in series in C
Two lightbulbs have cylindrical filaments much greater in length than in diameter. The evacuated bulbs are identical except that one operates at a filament temperature of 2 195°C and the other operates at 2 085°C. Find the ratio of the power emitt..
A frictionless pulley has the shape of a uniform solid disk of mass 6 and radius 25 . A 1.90 stone is attached to a very light wire that is wrapped around the rim of the pulley.
A grinding wheel in the shape of a solid disk is 0.200m in diameter and has a mass of 2.50kg. How far would it have to drop in free fall to acquire the same amount of kinetic energy
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