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A horizontal semitransparent plate is uniformly irradiated from above and below, while air at T8 = 300 K flows over the top and bottom surfaces, providing a uniform convection heat transfer coefficient of h = 40 W/m2 · K. The total, hemispherical absorptivity of the plate to the irradiation is 0.40. Under steady-state conditions measurements made with a radiation detector above the top surface indicate a radiosity (which includes transmission, as well as reflection and emission) of J = 5000 W/m2, while the plate is at a uniform temperature of T = 350 K. Determine the irradiation G and the total hemispherical emissivity of the plate. Is the plate gray for the prescribed conditions?
An N-type silicon substrate with the doping density of 1x10 15 cm-3 Arsenic is to be converted into p-type by Boron diffusion, so that the resistivity at T=75C is 5 O-cm. All atoms are fully ionized.
A temperature sensor produces 10 mV for each degree Fahrenheit. Determine the error in temperature reading if 20 mV of noise is added to the sensor output signal when the temperature is 70 degrees.
What is Intermediate switch, its construction, working principle and uses in different wiring (lighting etc) circuits?
A 3-D cubic unit cell contains four atoms whose centers are positional halfway up along each of the vertical cell edges and one atom each centered in the middle of the top and bottom faces. Make a sketch of the unit cell.
A uniformly doped n-type silicon bar doped ND =1016/cm3 of length L is illuminated to create1011/cm3 excess electron-hole pairs at x=0.The illumination wavelength does not allow the light to penetrateinto the interior (x>0) of the bar.
Second order unity gain Tschebyscheff low pass filter. The task is to design a second order unity gain. Tschebyscheff low pass filter with a corner frequency of fc = 12.5kHz and a 3dB passband ripple. Determine C1, C2, R1, and R2.
The purpose of this problem is to show you the connection between Fourier series and linear algebra. For simplicity, we will consider a finite basis. All questions will be referred to the following basis B = {1, sin(400t), cos(400t), sin(800t), cos..
Asssume that you are to design a synchronous TDM carrier to support 30 voice channels using 6-bit samples and structure similar toT1.Determine required bit rate
Neglecting losses, determine the power that can be developedfrom Niagara Falls, which has an average height of 168 ft and over which the water flows at 500,000 tons per minute.
A three-phase 600VAC generator delivers 2000KVA at a lagging power factor of 81%. If the generator is 86% efficient how much horsepower is required to operate it If the generator outputs its rated voltage what would the line current
Determine the system impulse response in time domain and draw its root locus and comment on system stability.
Design a combinational logic circuit which has one output Z and a 4-bit input ABCD representing a binary number. Z should be 1 iff the input is at least 5, but is no greater than 11. Use one OR gate (three inputs) and three AND gates
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