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The output-port(drain-source terminals) of an n-channel depletetion -mode MOSFET with parameters K=0.25mA/V^2 and Vtr= - 2Vis connected to a Thevenin circuit consisting of Vdd=7V andRd=1.5kOhm. The input port is connected to a Thevenin circuit consisting of Vin=5V and Rg=10kOhm.Find the operating point Id,Vds of the drain-source port.
An optical communication system employs a photodetector whose output is modeled as a Poisson(λ ) random variable X. Find the second moment and the variance of X.
A modulating signal consists of two sinusoidal components: 1 kHz and 3 kHz. The transmitter carrier frequency is 80 kHz. Assume in a SSB-USB modulated signal that the inserted carrier at the receiver is 200 Hz too high. Indicate the frequencies of..
A new semiconductor has Nc = 1019 /cm3 and Nv=5 x 1018, and Eg = 2eV. If it is doped with 1017 donors (fully ionized), calculate the electron, hole, and intrinsic carrier concentrations at 627K.
Determine the range of stable gain for the following system using the Routh test. s4 + 3s3 + 12s2 + (K - 16)s + K = 0
A 240kW 500 Volt 1750rpm separately excited dc generator has an overall efficiency of 94%. The shunt field resistance is 60ohms, and the rated current is 5amps. The I^2R loss in the armature is 0.023pu.
Using only resistors, capacitors and op-amps design a circuit meeting the following criteria: The circuit acts as a band pass filter. The 3dB points arer at 100 and 1000 Hz. The mid-range gain is -1 V/V and the mid-band input resistance is on the ..
A ball of radius 1 meter centered at the origin has uniformly distributed over its volume a positive charge Q. a. In moving a positive test charge from the point (x, y, z)= (2, 2, 2) to the point (4, 4, 4), do you have to do work on the test charge..
consider the dual circuit where the value of the inductor is L=1H, the initial current in the inductor is iL(0)=-1amps, and the input is the source vs(t). Let vs(t)=u(t)=u(t-1). Plot the corresponding current iL(t) for all times.
b- Evaluate the sum of the second row of B. c- Multiply the second column of B and the first column of A. d- Evaluate the maximum value of the vector resulting from element-by-element multiplication of the second column of B with the first column ..
The system has total capacitance CT = 1.0 muF (10 ^ 6 Farad) and average frequency in use at 10kHz. The transformation of battery power to power inn the microcontroller and additional components occurs with virtually no losses.
A balanced positive-sequence wye-connected 60-Hz three-phase source has line-to-line voltages of VL = 208V rms. This source is connected to a balanced wye-connected load. Each phase of the load consists of an impedance of 30 + j40 *
When a cloud passes over a certain spot on the surface of the earth a vertical electric field of E = 100 V/m is recorded there. The bottom of the cloud is a height d = 300m above the earth and the top of the cloud is 600m above the ground.
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