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The transistor amplifier in Fig. P7.48 is biased with a current source Iand has a very high ß. Find the dc voltage at the collector, VC. Also, find the value of re. Replace the transistor with the T model of Fig. 7.26(b) (note that the dc current source Ishould be replaced with an open circuit). Hence find the voltage gain vc
Fading margin can be defined as the incremental Eb/N0, in decibels, required to provide a certain desired error probability in a fading channel as could be achieved with the same modulation technique in a nonfading channel. Assume that a bit-error..
Use a single hidden layer, but with a variable number of hidden neurons. Investigate how the network performance is affected by varying the size of the hidden layer.
What is the minimum Eb/Ieff (bit energy over effective noise energy) to yield P(e)
Three single-phase transformers are connected in a wye/delta configuration. Each single-phase transformer has an identical number of turns in the primary and secondary windings.
1- If the diameter of a spherical water droplet is 100.0 µm, how much energy is required to increase the diameter of the water droplet by 3.0 µm The surface tension of water is 1.0 x 10-3 J/m2. 2- A metal crystallizes in a face-centered cubic lat..
Design a low pass active filter such that its roll off attenuates frequency components a 10kHz or more by more than 30 db. This means that the magnitude of the transfer function (in db) at frequency 10kHz should be -30db or less
A 75-kVA, 230-V/115-V, 60-Hz was tested with these results: Open-circuit test: 115 V, 16.3 A, 750 W; Short-circuit test: 9.5 V, 326 A, 1200 W a) Determine the voltage regulation at rated load, 0.8 power factor lagging.
A voltage follower of the op-amp parameters are Ao = 5x 10^5, Ro = 75ohm, and Ri = 2 Mohm. The input voltage is Vs = 5V and Rs = 10 kohm. Find the output voltage Vo,the input resistance Rin = Vs/is and the output resistance Rout.
Wires manufactured for use in a computer system are specified to hve resistances between .12 and .14 ohms. The actual measured resistances of the wires produced by company A have a normal probability distribution with mean .11 ohm
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.
The business plan for a start up company that manufacures multigas portable detectors showed equivalent annual cash flows of $400,000 for the first 5 years. If the cash flow in year 1 was $320,000 and the increase there after was $50,000 per year
If the balloon has a diameter of 12 m and carries two people, 85 Kg each, determine the acceleration of the balloon when it is first released. Assume the density of air is p= 1.16 kg/m^3, and neglect the weight of the ropes and the cage.
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