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A pure inductance of 120 mH is connected in parallel with a 25 μF capacitor and the network is connected to a 100 V, 50 Hz supply. Determine (a) the branch currents, (b) the supply current and its phase angle, (c) the circuit impedance, and (d) the power consumed
discuss the flat and segmented memory models and provide an example of how each are used to specify a memory
Determine the energy uses on farms in middle east and determine whether or not it is better to use a stand alone system or a grid connected system for the application on farms.
let X(s) be the Laplace Transform of signals that are bounded (i.e. the poles of X(s) are on the left-hand s-plane). Find lim [as t goes to infinity)] y(t). Determine if the system is BIBO stable. If not, determine what makes the system unstable.
Find the equivalent impedance for Z1 = 60 L+60 and Z2 = 80 L-45 when these are connected in parallel What are the branch currents and the total circuit current if the supply voltage to the circuit is VS = 240V L0
A semiconductor has Nc=10^19 cm^-3, Nv=5x10^18 cm^-3 and Eg=2eV. If it is doped with 2x10^17 acceptors (fully ionized), calculate the electron, hole and intrinsic carrier concentrations at 627 C. Sketch the simplified band diagram, showing the pos..
Consider a GaAs MESFET. When the device is biased in the saturation region, we find that Id = 18.5µa and Vgs=.35 V and Id=86.2µa at Vgs=.5V. Determine the conduction parameter k and the threshold voltage Vtn.
A semiconductor device requires n-type material; it is to be operated at 400K. a) would Si doped with 10^15 atoms/cm^3 of Arsenic be useful in this applications. b) Could Ge doped with 10^15 cm^-3 antimony be used.
Suppose that we want to determine how many of the bits in a six-bit unsigned number are equal to 1 . Design the simplest circuit that can accomplish this task.
A separately excited DC generator rated at 125V has an armature resistance of 0.75 ohms and a no load coltage of 140 VDC. What will the armature voltage will be at rated load
Compare the equivalent and nominal π-model for the line; At the full load the line delivers 800 MW at 0.9 leading power factor and at 480 kV to the receiving end load. Calculate voltage regulation and efficiency of the line
Problem: Using 3 pages, propose a sequence of experiments and data output considering the following questions:
Calculate the extraction efficiency (in percentage) of flat - surface LED without any encapsulation (emits directly into the air). The LED is fabricated from material with the refractive index n = 2.3.
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