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A 2-mm-diameter electrical wire is insulated by a 2-mm-thick rubberized sheath (k = 0.13 W/m · K), and the wire/sheath interface is characterized by a thermal contact resistance of R c = 3 X 10-4 m2 · K/W. The convection heat transfer coefficient at the outer surface of the sheath is 10 W/m2 · K, and the temperature of the ambient air is 20°C. If the temperature of the insulation may not exceed 50°C, what is the maximum allowable electrical power that may be dissipated per unit length of the conductor? What is the critical radius of the insulation?
Compute the operating torque angle δss. Assume δss = 25 degrees and computer areas A1 and A2
Lower order to meet given magnitude response specifications and qualitatively better amplitude distortion behavior in the passband;
A satellite is operated at C-Band (6 GHz in the uplink and 4 GHz in the downlink) for video broadcasting. Calculate the free-space loss experienced at this frequency, if the satellite is in geostationary orbit (GEO), located at 36 000 km above gro..
Use the mesh-current method ONLY to find all the mesh currents.
Compute the value of ES(N) or OS(N) for a given number N. First, you use switch 0 to represent ES or OS. We use switch[0] = 0 to indicate the computation of ES(N) and switch[0] = 1 to indicate the computation of OS(N).
We have v1(t)=10cos(wt+30degrees). The current i1(t) has an rms value of 5A and leads v1(t) by 20s. (The current and the voltage have the same frequency) Draw a phasor diagram showing the phasors.
What is the minimum sampling frequency to be able to avoid aliasing if your system has 10Hz, 100Hz and 1500Hz mixed in a signal
A wire is bent in the form of a half loop of radius a = 10 mm and charged with a line charge density XL = 10-9 C/m. Calculate the field intensity at center of the loop.
frequency 6GHz propagating in vacuum is comprised of two components which are in spatial and temporal quadrature. The phasor expression of the wave electric field is given to be. obtain the phasor expression for the wave magnetic field.
Consider a Δ-connect, 25 kVA, 480 V, 60 Hz, six pole synchronous generator. The field current is set such that the line voltage is 504 V when supplying a rated load. Consider the armature resistance to be negligible.
Develop a solution to the following using Matlab. Generate your solution using a script. 1. Solve a. For x=3p/4, compute ejx b. Log10(xy) with x=19 and y=29 c. Find the Y1/5 with Y=924
annual income from a rental property is expected to start at $1300 per year and decrease at a uniform amount of $50 each year after the first year for the 15-year expected life of the property. the investment cost is $8000 and "i" is 9% per year.
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