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Consider a GaAs MESFET. When the device is biased in the saturation region,Id=18.5 micrroamp,Vgs=.35and Id=86.2 micro amp,Vgs=.5 determine the conduction parameter and k and threshold voltage Vth
From the definition of polarization (p) Perrin equation, and anisstropy (r) introduced by Jablonski, derive the interchangeable relation between p and r.
An electronic timer consists of a resistor whose value is 10,000 ohms, a capacitor of 30 pico farads, and a 10 volt source which is applied across the RC connection at time t =0.
(a) Plot the spectrum of the Fourier series. (b) Determine the trigonometric Fourier series coecients for the first 6 harmonics. (c) Determine the total power of x(t) for the first 6 harmonics (d) How much of the total power of x(t) is in the DC harm..
Two infinite, thin wires are oriented in the x-direction. One is at the origin, carrying a current of 1A. The second wire is at (0,20cm,0) carrying a current I in the same direction. What current is needed in the second wire to produce 0 magnetic ..
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 student lifts a weight (W) using a motor powered by solar cells to determine the efficiency of the solar cell/motor system. On the power meter the voltage reads V and the current reads I. The student lifts the weight a distance H in a time T.
A shopper in a supermarket pushes a cart with a force of 37 N directed at an angle of 25° below the horizontal. The force is just sufficient to overcome various frictional forces, so the cart moves at constant speed.
A simple voltmeter with a full-scale reading of 50(V) is required. Use a d'Arsonval movement with a rating of 20(mV) at 1 (mA). Calculate the value of the voltmeter resistor, Rv, required to achieve these design specifications.
A trough is 8 feet long and 1 foot high. The vertical cross-section of the trough parallel to an end is shaped like the graph of y=x^{8} from x=-1 to x=1 . The trough is full of water. Find the amount of work in foot-pounds required to empty
For the LCD configured in 8-bit mode, describe the signal conditions for CSB, E, RS, R/W~, and the data bits (D7 thru D0) needed to write the letter character ‘A' from the microcontroller into the LCD module.
Construction of different types of power transformer, significant energy savings
Consider a long wire represented as distributed RC sections. The total wire length is 5mm. To reduce the wire delay, we uniformly insert n buffers along the wire. Suppose r=12Ohms/m and c=0.2fF/m and the delay of each buffer is 1ns.
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