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Discuss the effects of signal attenuation on the noise figure. Why is it important to minimize losses in the input of the amplifier
A Spring balance is calibrated in an environment at a temperature of 200C and has the following deflection/load characteristic: Load (kg) : 0 1 2 3 Deflection (mm) : 0 20 40 60 It is then used in an
A transmission line which consists of 2 parallel cylindrical conductors spaced 2m apart in air and carrying a current of 800A. determine the magnitude of the magnetic flux density produced by 1 conduc
In a given byte addressable computer, memory locations 10000Hto 9FFFFH are available for user programs. The first location is10000H and the last location is 9FFFFH. Calculate the following: (a) The
A huge reservoir of air supplies a converging-diverging nozzle with throat and exit areas of 10 cm^2 and 25 cm^2 respectively. The reservoir pressure and temperature are 150 kPa and 20C. Determin
A CRC is constructed to generate a 4-bit FCS for an 11-bit message.The generator polynomial is X4 + X3 + 1.a. Draw the shift register circuit that would perform this task.
Two control rods are attached at A to lever AB. Using trigonometry and knowing that force in the right-hand rod is F2=20 lb, determine a.) the required force F1 in the left-hand rod if the result
A 10-watt signal is connected to a low-pass channel with bandwidth B Hz. If the channel is corrupted by additive whiteGaussian noise (AWGN) with singel-sided power spectral density of10-7 Watts/Hz.
An alphanumeric source is connected to voice-grade telephoneline with a useable bandwidth of 3000 Hz and SNR of 20 dB at theline output. Assume that the source has 128 equiprobable andstatistically
Let Un be a sequence of iid zero-mean,unit-variance Gaussian random variables. A "low pass filter" takes the sequence Un and produces the sequence Xn =1/2 ( Un +Un-1) a.) Does this sequence co
Which would you expect to have a bigger effect on the power consumption of a CMOS circuit, a 5% increase in power-supply voltage or a 5% increase in internal and load capacitance
A point charge of 20nC is located at (4,-1,3), and a uniformline charge of -25nC/m lies along the intersection of the planesx=-4 and z=6. (a) Calculate D at (3,-1,0). (b) How much electric flux leve
The penny is given acharge of +5nC, and the nickel and dime are discharged. Theassembly is lowered into the can so that the coins hang clear ofall walls, and the lid is secured. The outside of the c
A box contains 'm' white balls and 'n' black balls.Balls aredrawn at random one at a time without replacement. Find the probability of encountering a white ball by the kth draw.
A constant current of 3 A for 4 hours is required to charge an automotive battery. If the terminal voltage is 10+ t/2 ,where t is in hours, a) How much charge is transported as a result of the charg
A 10 MVA, 6.9 KV. star connected generator has positive, negative and zero sequence reactance of 25, 20 and 7% respectively. An inductive reactor with 6% reactance based on the rating of the generat
A) Design a sequence detector using D flip-flops to detect the sequence 1101with the overlapping permitted. B) Design a synchronous counter using J-K flip-flops that hasthe following sequence:- 000,0
There are two 100μF capacitors. One is charged to an initial voltage of 50V and the other to an initial voltage of 100V. They are then placed in series with the positive terminal of the first con
Design a 6-bit weighted register DAC whose full scale output voltage is -16V. Logic Levels are 1=+5V and 0=0V. What is the output voltage when input is 001011
Explain why it is important that the stimulus waveforms signals in a test waveform bench be synchronized to the inactive edge ofthe clock of the sequential circuit to be tested.
the circuit should have a thermistorthat gives a linear out of 100-200Ω for temperature reading of 0-100 deg. let the circuit use the thermistor to control the heater so that it provide a cons
A certain transformer has 250 turns in its primary winding. In order to double the voltage, how many turns must be in the secondary winding
The inferred absolute temperature for copper is -243.5C. If the resistance of a copper wire is 10 ohms at 25C, what is its resistance at 200C
use only DC power sources and it should power a string of LEDs by replacing individual lights by a buch a bunch of them. calculate frequency, wave type(square, sine, triangular, etc) and max and min
A power supply outputs 25Winto a load. The power supply input voltage is 115V and the inputcurrent is 0.5A. What is the effiecency of the power supply