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Devices: LM555 Timer, LM 1458 dual op amp (ortwo LM741 op amps), MPF102 n-channel JFET, 1 kohm, 2.7 kohm, 1Mohm, 0.01μF, and a 0.1μF.1. Using the devices above, please construct the 555circuit. use circuit-building software you want andmeasure and record the frequency and the duty cylcle of theoutput. Also, include the picture of the constructed circuit.2. Construct the 555 circuit without the 0.01μF capactitor. (1.5-V pk-pk sine with a +4.5 V offset) Observeand sketch the output of the circuit for a 200 Hz inputsinusoid.3. Increase the frequency of the input sinusoid to 400Hz, 500 Hz (the Nyquist frequency), and 600 Hz. Comment onthe sampling waveforms, your understanding of the Nyquist criteria,and the ability to generate the original waveform from thesamples at each of these frequencies.4. Place the 0.01μF capacitor in the circuit andrepeat step 2.5. For the Sample & Holding circuit, if the outputimpedance of the first op amp is 1Ω and the drain-source resistance of the JFET is 99Ω, what is the time constant for charging the 0.01μF capacitor?
a) What is the key difference between coherent and non-coherent demodulation b) Explain the concept of differential encoding for BPSK modulation.
Design a voltage-divider bias network using a supply of 24V, a transistor with a Beta of 110, and an operating point of IC = 4mA, and VCE = 8V. R2 = 7.5k. Choose VE = (1/8)VCC
A circular loop of radius a is located in the y-z plane center at the origin in the presence of a uniform B field pointed in the +x direction. At t=0 the loop is rotated counter clockwise with radial frequency about the z-axis.
A series RLC circuit is connected to a 5 V supply, the frequency of the supply is adjusted to give a maximum current of 11.9 mA at 2.5 kHz. The Q factor is 70. Determine the component values of the circuit.
The current flowing into a particular capacitor is given by the expression I = 6e^(-0.05t) where I is in Amps and t is in seconds. The voltage across the capacitor during the same time period is given by V = 10-10e^(-0.05t) where V is in Volts.
spring stretches by 0.0186 m when a 3.24-kg object is suspended from its end. How much mass should be attached to this spring so that its frequency of vibration is f = 5.53 Hz
Murray Loop Test and Locating Faults, Q.1 (a) Using the Murray Loop test, determine the distance to an earth fault on one of the cores of a uniform three-core underground cable. Ra = 2 ohms, Rb = 1 ohm
Using the Quine-McCluskey's method, find the SOP and POS solutions for the function below, and verify that they match with the Karnaugh map solutions. f (a,b, c, d) = \(\sum m(0,1,6,15)+ \sum d(3,5,7,11,14)\)
An office building of 20,000 ft2 would then take 40,000 watts of lighting at 2 watts /ft2. which amounted to 667 - 60 watt light bulbs or about the same two-bulb fluorescent fixtures. Resize the lighting system (W) assuming a lighting level.
a) Find the general solution of the homogeneous ODE (the left hand side) and call it yh. b) Verify that yp= -0.5tcos(3t) is a solution.. i.e show that yp" + 9yp'= 3sin(3t). c) Construct the general solution of this ODE y=yh+yp
Three single-phase transformers, each rated 15 MVA, 13.2:66 kV, with a leakage reactance of 0.1 pu, are connected to form a three-phase Y-Δ bank, one side of which is connected to a 120-kV tranmission line and the other side, to three 12-ohm resis..
An open-circuited 50ohm microstrip transmission line is used in a microwave amplifier circuit to provide a capacitance of 3.2 pF at 2.3 GHz. (a) Find the appropriate electrical length of the line.
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