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A coaxial cable consists of a wire of radius 'a' surrounded by a concentric conducting sleeve of inner radius 'b' and outer radius 'c'.
A current flows in the wire of radius 'a' out of the page; this current is spread uniformly over the cross section of the wire. An equal current flows in the opposite direction in the sleeve; this current is spread uniformily over the cross section of the sleeve.
1) find the magnetic field in the space between the wire and the sleeve; and also in the space outside the sleeve. (that is , find the mag field at a distance 'r' from the center of the wire when b<r<c and when r>c )
2)why is coax cable used in some applications? What are the physical characteristics that make its use desirable in some situations? (the answer to this part of the question may make use of the results for part [1]).
what are the advantages of external css compared to internal css? explain situations in which each is the appropriate
A heat pump maintains a dwelling at 68 F. When operating steadily, the power input to the heat pump is 5 hp, and the heat pump receives energy by heat transfer from 55 F well water at a rate of 500 Btu/min.
Two single phase transformers are connected in parallel with the following parameters. Transformer A, rated at 60 kVA Rc=250 k Ohm Req=25 Ohm Xm=45 k Ohm Xeq=150 Ohm
a) Using a table of the Gaussian distribution, determine an exact value for P[|X-n|>=2.5sigma] b) What is the upper bound on P[|X-n|>=2.5signma] given by the Chebyshev inequality
design a bias-stable common emiter amplifier circuit whose output is capacitively coupled to a load resistor RL = 10KΩ using a 20V power supply. The Minimum small signal voltage gain should be -20V/V. Assume the following parameters for the transi..
Each of the four members of a "jukebox jury" is provided with a pushbutton; the button is pressed if the record played is a "hit" and is not pressed if the record played is a "miss". Design a digital logic system that lights a lamp
Construct a plot ofsilicon resistivity versus impurity concentration at T = 300K.Include curves for both n-type and p-type silicon over the range of10^13/cm^3
Fins are used to enhance the cooling of an object. Fins are manufactured in a wide variety of shapes and sizes, and for a mass-product, it may be beneficial to optimize the shape of the fin. find the dimensions of the fin that achieve a maximum
Build a home security system circuit using this program. The system must include 2 door sensors, 3 window sensors, 2 smoke detectors, 2 water leak sensors, and 2 motion detectors.
Simplify the following circuit. Line A goes into an INVERTER, then into a NAND Gate, then into an OR Gate, then travels into another NOR Gate.
a) Find the amplitude and phase of the Thévenin voltage with respect to the terminals a, b. b) Find the Thévenin impedance with respect to the terminals a, b. c) Draw the Thévenin source physical equivalent circuit.
Show how truncating a signal affects its spectrum using both equations and pitures. What can one do to reduce the effects of truncation?
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