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1. A receiver is connected to an antenna system that has a noise temperature of 100 K. Find the noise power that is available from the source over a 20-MHz band.
2. A bipolar transistor amplifier is modeled as shown in Fig. P8-17. Find a formula for the available power gain in terms of the appropriate parameters.
what is the common mode of starting the synchronous motor. Explain the function of the damper winding popularly called as the "amortisseur winding". Indicate all circuit diagrams to explain working of the synchronous motor.
Suppose we use a 4-bit unsigned binary representation to encode the rotational position of the shaft in Figure 3.14 instead of a Gray code. Identify all cases where more than one bit changes between adjacent code words.
write a paper on orthogonal frequency-division multiplexing with advantages disadvantages and uses.the format
You balanced a pump impeller by placing a 5 gram weight at a radius of 100 mm. The original vibration amplitude was 10 mm/s, and after adding the balancing weight, the vibration is 1 mm/s. The speed of the pump is 1500 rpm and the weight of the im..
Design a 2-bit counter that, when f = 1, counts in the repeating sequence: 0, 2, 3, and when f = 0, counts in the reverse direction. Use T flip-flops. (a) Construct a state diagram or state table.
Provide an output V to indicate that at least one of the input ispresent. The input with the highest subscript number has thehighest priority. What will be the value of the four outputs if inputs D5 and D3 are 1 at the same time
A material is found to have a tenth-thickness of 2.3 cm for 1.25-MeV gamma rays. (a) What is the linear attenuation coefficient for this material (b) What is the half-thickness (c) What is the mean-free-path length for 1.25 MeV photons in this materi..
find the time duration of a low pass energy signal
You've formed a band, despite advice to the contrary. Actually, the band is pretty good except for the fact that the lead singer (who owns the drum set, the microphones, and the garage where you practice) is a bit tone-deaf.
Comparing Error probabilities with BPSK and QPSK systems, A BPSK system and a QPSK system are designed to transmit at equal rates; that is, two bits are transmitted with the BPSK system
Explain on how the voltage can be distibuted over sunspension insulators and how string efficiency can be obtained?
A three-phase, 60Hz, wye-connected synchronous generator has balanced line-to-line voltages of 480V at its terminals. The generator is supplying power to two balanced and delta connected, three-phase loads. the first load is made up
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