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A long bar of rectangular cross section is 60 mm by 90 mm on a side and has a thermal conductivity of 1W/m · K. One surface is exposed to a convection process with air at 100°C and a convection coefficient of 100W/m2 · K, while the remaining surfaces are maintained at 50°C.
(a) Using a grid spacing of 30 mm and the Gauss-Seidel iteration method, determine the nodal temperatures and the heat rate per unit length normal to the page into the bar from the air.
(b) Determine the effect of grid spacing on the temperature field and heat rate. Specifically, consider a grid spacing of 15 mm. For this grid, explore the effect of changes in h on the temperature field and the isotherms.
Describe the characteristics of the series RC filter circuit with the outpu across the resistive component. Distinguish the pass and stop bands with reference to the cutoff frequency. Also state what happens to the circuit complex impedance at the..
What is the Diversity Factor in Electrical Wiring Installation ??
Electrical Engineers work for the full time and to fulfil the requirement, they do overtime. Though the overtime for an Electrical Engineer is worthwhile and sometimes it is given with additional benefits.
1. What should the length of an antenna be if it is going tobe used to send data at 145.01MHz, assume a 1/4λmonopole antenna is used. 2. The impedance of an antenna was measured as z = 17 -j470Ω what does this mean
(a) Find and sketch the spectrum of the information signal. What is the bandwidth of the information signal (choose an appropriatedefinition for the bandwidth in each case) (b) Write a time-domain expression for the modulated carrier.Include all kn..
1 how do you find the calculus the derivative and integral of a sinewave? 2 how do you show that a triangle wave can be
1. Assume 1800.0 MHZ EM wave propagates in the z- direction with E pointing in the x-direction and E0 = 20.00V/m i Calculate the wavelength ii. Calculate the magnetic flux density
Compute the power absorbed by an element in a circuit, but for a simple sinusoidal current i = sin(2πt/T) where T = 1 s.
If the phisical memory location is 6521H ad the code segment is 1400H what IP address must be used to fetch the instruction
A Y-connected load with an impedance of 12 - j15 per phase is connected to a balanced Delta-connected 208-V, 60-Hz, three-phase, positive phase-sequence supply. Determine (a) the line and phase voltages
What are the boundary conditions of the normal and tangential components of steady current at the interface of two media with different conductivities
Three series-connected capacitors, C1, C2 and C3, with capacitances 10uF, 15uF and 27uF respectively, are connected in parallel with a 15uF capacitor and a 150V DC source. Calculate: a) Equivalent capacitance of the circuit
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