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Suppose that we are located at the center (field-free region) of a very large, uniform, spherical cloud of positive charge. Show that what we consider to be negative charges may then be interpreted merely as holes in this cloud. What are then the positive charges as we know them?
A pn-junction is formed in silicon by doping one side with acceptor atoms at concentration Na = 10^19 cm^(-3) and another side with donor atoms at Nd = 10^18 cm^(-3). What is the dopant concentration on the p-type side and on the n-type side
An IC NMOS transistor has W=100μm, L = 10μm,μnCox= 20μA/V2, VA= 100 V, γ = 1/2 V1/2, Vt0= 1V, and 2φf= 0.6V. calculate the value of Vt at VSB= 4V. Also for VGS=3V and VDS=5V, Calculate ID for VSD = 0V and for VSB = 4V
an electric oven operates at 120v. if its power rating is 0.6kw what amount of current does it draw and how much
A 750-N.m torque is applied to a hollow shaft having the cross section shown and a uniform 6-mm wall thickness. Neglecting the effect of stress concentrations, determine the shearing stress at points a and b.
Find the Laplace Transform for the following functions. u(t) is the unit step function, δ is the Dirac-Delta function.
Llooking at the distribution transformers failure trend it shows a high rate in wet season than in the dry seasons. what could be the likely contributing factors
A series resonant circuit has a resonant frequency of 10 kHz. The resistance of the circuit is 5 ohms and Xc at resonant is 200 ohms. a. find the bandwidth. b. find the cut-off frequencies. c. find Qs. d. if the input voltage is 30V
describe the characteristics of the series rc filter circuit with the output across the resistive component.
the rms voltage of a balanced 3 phase Y connected source is 110 volts at 60Hz. it is connected to a balanced Y Load by 3 distribution lines with an impedence on each line z=1+j2. the load impedence is z=19=j28 per phase.
Semiconductor A is direct band gap and semiconductor B is indirect gap. For providing same short circuit current density of a solar cell, which material will need more thickness
BJT can be used as a switching network. In this case, Q-Point jumps from one extreme of Dc Load Line to the other creating Saturation and cutoff conditions. What components in the configuration assure us of this operation
The DC shunt motor is running at full load with a supply voltage of 440 V and a supply current of 70 A. The rotation speed in full load is 1000 rpm, the field resistance is 200 Ohm and the armature resistance is 0.2 Ohm.
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