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A sinusoidal signal is riding on a 2 v DC offset (in other words, the average value of the total signal is 2 v). Design a circuit to remove the DC offset and amplify the sinusoidal signal (without pha
If 3x10^20 electrons go through the cross section in the z-direction in 4 seconds, and simultaneously, 1.5x10^20 protons go through the same cross section in the negative z-direction, what is the ma
Calculate the mass flow through the boundary layer at a distance of 5 cm from the leading edge of the plate. How much mass flows into the boundary layer in the region between 2.5 and 5 cm from the lea
a. What are the cyclic frequency (in Hz) and period of this signal b. Express this signal in the Quadrature and Sine/Angle forms. c. Express this signal in terms of complex exponentials (hint - use Eu
To understand this, imagine we paint one of the blades of an airplane propeller so that we can identify it from the other blades. We will then turn the propeller at 33 rotations per second, in a clo
Be sure to specify three things for each component: its digital frequency (a number between 0 and 0.5), its amplitude (in digital numbers, peak-to-peak), and its phase relative to the original analo
When the temperature is held constant, the digital display of thermometer A does not change, but the display of thermometer B randomly toggles between three to four adjacent readings (i.e., +/- 2 de
Specify how many bits are needed to appropriately digitize each of the following signals. Choose from: 6 bits, 8 bits, 10 bits, 12 bits, 14 bits, or 16 bits. a. A signal where the maximum amplitude
Design a simple ALU (Arithmetic Logic Unit) which has three 4-bit inputs x = x3x2x1x0, y=y3y2y1y0 and z= z3z2z1z0, two control signals A and B and output S. The ALU should support the operations des
A certain amplifier has pole frequencies of f1=f2=f3=50MHz. The DC open-loop gain is 10^5. Find the pole frequency fc for the fourth pole so that the phase margin is 30 degrees for beta = 0.1 Also,
A point source light of 9000 cd is mounted 3.3m above the centre of a work bench.The bench measures 4m x 4m, what is the illumination on the corners of the bench ?
in a RLC series circuit R=500Ω L=0.4mH and C=100pF the circuit is connected to the terminals of an ac source with an rms voltage of 1V, and a variable frequency calculate the following A) reso
How is the effect of frequency-selective fading on basic OFDM signaling and what techniques can one use in OFDM to overcome fading?
Consider a MAN with the average source and destination 20 km apart. At what data rate does the round-trip delay due to the speed of light equal the transmission delay for a 1-KB packet
Design a filter that satisfies the following requirements: 1 input is a current source ranging from 4 mA to 20 mA with a source resistance of 10 ohms. 2 THe filter must output a voltage ranging from 2
A shunt-connected a DC motor has zero rotational losses and RA = 0. Assume that RA and Radj is constant [except in part (d)] and that φ is directly proportion to field current. For VT= 200 V and
The output SNR of a 13-bit PCM was found to be insufficient at 30 dB. To achieve the desired SNR of 42 dB, it was decided to increase the number of quantization levels L. Find the fractional increas
To transmit this signal by binary PCM without compression, uniform quantization is adopted. If the SQNR is required to be atleast 43dB, determine the minimum number of bits required to encode the un
A three-stage amplifier is shown. The operating bandwidth is 500 KHz at a temperature od 25 degrees C. The output load is 1000 ohms. calculate the total NF as a number, calculate the output noise po
The bandwith of a series resonant circuit is 400 Hz. if the resonant frequency is 4000 Hz, find Q. and if R = 10 ohms, what is the value of XL at resonance", and Find the inductance L, and capacitan
4-pole , 500 volts shunt motor has a simplex lap winding placed in 80 solts , each cotain 30 conductors . The shunt filed resistance and the armature resistance are 250 and 0.005 ohm respectively .
A dc shunt machine is connected to 220 volt supply and is running at speed of 1200 r.p.m . its armature current is 60 amp and the torque of its shaft is 95 Nm . show whether the machine in running a
The armture of 2 -pole , 200 volts , wave wound DC machine has 400 conductors and runs at 300 r.p.m . Calculate the useful flux per pole.
The American Standard Code for Information Interchange (ASCII) has 128 binary-coded characters. If a certain computer generates 100,000 characters/second, determine the following: a. The number of b
3. Which of the following is not an advantage of FETs over BJTs in RF amplifier usage. A) Their input impedance does not load down the Q of the circuit preceding the FET stage. B) The availability of