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A cable of radius conductivity k and specific heat moves through a furnace with velocity U and leaves at temperature T Electric energy is dissipated in the cable resulting in a volumetric energy generation rate of , or . pco qc.
Outside the furnace the cable is cooled by convection and radiation. The heat transfer coefficient is h, emissivity H, ambient temperature T and surroundings temperature is T Use a simplified radiation model and assume that the cable is infinitely long.
Write the steady state two-dimensional heat equation and boundary conditions.
Find the capacitor voltage (you choose referece direction force), the inductor current(you choose reference direction for iL,the energy stored in the capacitor, and the energy in the inductor.
Draw a developed diagram for simplex wave winding for 4-pole generator with 36 armature conductors. Indicate the position of brushes.
In a swamped common-emitter BJT amplifier, as shown below, if Vcc = 12 V, R1 = 8.2 k , R2 = 10 k , Rc = 500 , RE = 1 k , VBE = 0.7 V, and = 100, what is the transistor's emitter current
The density of states at the Fenni level (7 eV) was calculated for 1 cm3 of a certain metal to be about 1021 energy states per electron volt.
Study code acquisition in frequncy hopping spread spectrum communication systems.Describe and explain why it is necessary.Design and demonstrate a code acqusition method.
Determine the generator matrix for the coder illustrated in Figure 11.15. Use the generator matrix to generate the complete set of code words and use the results to check the code words shown in Figure 11.15. Show that these code words constitute ..
Obtain the power factor of a two-branch parallel circuit whre th efirst branch has Z1 = 2 + j4 ohms and the second Z2 = 6 + j0 ohms. To what value must the 6-ohm resistor be changed to result in the overall power factor of 0.90 lagging
Determine the requirements of the digital fiters needed and design and write the dierence equations for the digital fiters.
What is the noise figure of the receiver?
Which of the transistor currents is always the largest? Which is always the smallest? Which two currents are relatively close in magnitude?
Three balanced loads are connected to three phase supply via a feeder line ZF = 0.021 +j 0.12 0 Ω. Draw a diagram of the load system
For a short transmission line having a series impedance Z=R+jXL, write the relationships between the sending-end and the receiving-end voltages and currents. Assuming a line with R=0, XL=20 ohm feeding a 1MW load at 0.95 power factor
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