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A long trapezoidal bar is subjected to uniform temperatures on two surfaces, while the remaining surfaces are well insulated. If the thermal conductivity of the material is 20 W/m · K, estimate the heat transfer rate per unit length of the bar using a finite-difference method. Use the Gauss-Seidel method of solution with a space increment of 10 mm.
a) Make a table showing each load and its complex power. b) Determine the total complex power and the overall power factor. c) Determine the magnitude of the total current supplied by the 600V source.
Consider a 16-ary PSK system with symbol error probability PE = 10-5. A Gray code is used for the symbol to bit assignment. What is the approximate bit error probability
a two element array of isotropic antennas to be used to get maximum radiation and a null in opposite directions along
A carousel, starting from rest, is brought to a full rotational speed of one revolution per 5.00 seconds. The angular acceleration during the process is 0.300 rad/s2. The radius of the carousel is 6.00 m.
he sensor to be used has a transfer function of ? Q volts, where Q is in gal/min, and an output impedance of 2.0 k?. Tests show that the output of the sensor has 60 Hz noise of 0.8 V rms. Design a signal-conditioning system, including noise filter..
Power Electronics: A Single-Phase Bridge Rectifier, A single-phase bridge rectifier has a purely resistive load R=10 Ohms, the peak supply voltage Vm=170 V
(a) triple frequency currents from flowing inthe main lines of the power system; (b) while still providing a time sinusoidal flux linking the coils of each phase of the secondary to produce sinusoidal voltage for the customers.And how does ungroun..
a). If the 8th bit is set to0, what is the minimum Hamming distance between the 8-bit ASCII character code words b). If the 8th bit is usedfor parity, what is the minimum Hamming distance between the 8-bitASCII character code words
The fuel tank contains 33 kWh per gallon. If the vehicle were to be replaced by an electric vehicle that charges from the power grid, how much power would it draw (in W, kW, or MW) to recharge at the same rate as the gasoline powered automobile
Rain harvesting is a means of water conservation. This real-life problem requires computation and critical thinking involving a practical solution. Apply the problem solving approach studied in class to this rain harvesting and irrigation problem.
an unknown semiconductor has Eg=1.1ev and Nv=Nc.it is doped with 10^15 donors,where the donor level is 0.2ev below Ec. given that Ef is 0.25ev below Ec, calculate ni and the concentration of electrons and holes in the semiconductor at 300k.
Three capacitors are found that each have an impedance of -j2.0, and they are connected in parallel with the load in a wye configuration. Determine the power factor of the combined load as seen by the source.
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