Physics, 27.07.2019 00:30 Damagingawsomeness2
Given an n-channel mosfet with: z/l-20, p-500 cm2/v-s oxide thickness 10 nm; relative dielectric constant of oxide-5: p+ poly si gate electrode: body doping of 2e17/cm3 qt-+2e11/cm2. cålculate the thresholdôoltage. assume that the fermi level in the gate is coincident with the valence band. be neat-show your results in a tabular form. a) we assume that the drain-source current is zero until threshold. is this true? what is the approximate functional relationship between current and gate voltage prior to threshold-explain using an appropriate y direction band diagram
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Physics, 21.06.2019 21:30
In what direction does the medium move relative to the direction of the wave? explain.
Answers: 3
Physics, 21.06.2019 22:50
A23 kg log of wood begins from rest, 300 m up a sluice (a water track used to transport logs, think of it as an inclined plane with negligible friction) inclined at 20° to the horizontal. after it reaches the flat waterway at the bottom it collides elastically with a 100 kg block of wood initially at rest near the base of the incline. (a) how long does it take the 23 kg log to travel down the incline? (b) what is the speed of the 23 kg log at the bottom of the incline? (c) what are the velocities of both blocks of wood after the collision? (d) what is the total kinetic energy before the collision? (e) what is the kinetic energy of the 23 kg log after the collision? (f) what is the kinetic energy of the 100 kg block of wood after the collision? (g) what is the total kinetic energy after the collision? (h) compare the total initial and total final kinetic energies. is this consistent with what you would expect for elastic collisions? explain!
Answers: 1
Physics, 22.06.2019 01:30
Kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energy b. motion energy c. sound energy d. thermal energy
Answers: 1
Physics, 22.06.2019 15:00
Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14πϵ0. d)the ball will oscillate along the z axis between z=d and z=−d in simple harmonic motion. what will be the angular frequency ω of these oscillations? use the approximation d≪a to simplify your calculation; that is, assume that d2+a2≈a2. express your answer in terms of given charges, dimensions, and constants
Answers: 2
Given an n-channel mosfet with: z/l-20, p-500 cm2/v-s oxide thickness 10 nm; relative dielectric c...
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