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An amplifier with a gain of 12 dB, a bandwidth of 150 MHz, and a noise figure of 4 dB feeds a receiver with a noise temperature of 900 K. Find the noise figure of the overall system.
Efficiency in a power transformer is 98.6% when loaded such that its core losses equal the copper losses. Calculate the per unit resistance of this transformer.
An urn contains 4 red balls and 2 black balls. Two balls are chosen at random and without replacement. What is the probability of obtaining one red ball and one black ball in any order Verify your results by enumerating all possibilities using a c..
a given system delays the input by t0 units of time and then subracts the delayed version from the original signal. Calculate the frequency transfer fucntion of this system.
The cast steel torroid shown below has a rectangular cross-section. If the flux in the core is known to be 7.75mWb and the coil has 200 turns, determine the current in the coil. dimensions on the torrid. 300mm id; 400mm od; 100mm tall
In problem 1 and 2, find a system of differential equations and initial conditions for the currents in the networks given by the schematic diagrams: the initial currents are all assumed to be zero. Solve for the currents in each branch of the netw..
Discuss the methods used for finding the approximate transformer parameters Rser, Lser, Rpar, and Lpar and determine the transformers equivalent resistive parameters.
A "ferrite" having a relative permeability of 50 H / m, that operates with flux densities sufficiently small, may be considered a single material. If the magnetic flux density in the material is B = 0.05 T, H and M. halle How to compare the values
Which hypothesis will she accept and what will be the probability of error?
Create two subsystems, where each subsystem executes on separate Micro Controller Units (MCU). One subsystem represents the Engine Management System (EMS) and the other the Engine Control Unit (ECU).The system is to emulate an Engine Control Syst..
Scenario/Summary: At least two of the following simulations must be attempted by the student. Verify Loop Analysis Method by MultiSim simulation Verify Superpposition Theorem Method by MultiSim simulation
One end of a long glass rod (n = 1.3) is a convex surface of radius 4.9 cm. An object is located in air along the axis of the rod, at a distance of 10 cm from the convex end. (a) How far apart are the object and the image formed by the glass rod
A chip is selected at random. If the color of the chip selected is white, it is eplaced and two more white chips are added to the urn. However, if the chip drwan is blue it is not replaced and no additional chips are put in the ..
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