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An engineer decides to set up an experiment to try this idea out. He decides to use a large metal plate or substrate as one electrode, then paint it and then place another electrode (with a smaller
1)what are the significance of threshold voltage in enhancement mode MOSFET and depletion type MOSFET 2) draw the input , output and transfer characteristics of MOSFET
Consider a message signal m(t) containing frequency components at 100, 200, and 400 Hz. This signal is applied to a SSB modulator together with a carrier at 100 kHz, with only the upper sideband ret
Design and simulate a power supply that takes line voltage and produces a 15V output with less than .5% ripple voltage. For your design, provide all the data sheets, calculations and simulations for t
1. Find the Fourier transform of the signal by hand, using either the de nition of the Fourier transform or properties of the Fourier transform. 2. Use the Symbolic Math Toolbox to nd the Fourier tra
Let the filter length be 7 or 8. Design four different filters: Type I, Type II, Type III, and Type IV. Derive the equations for the ideal impulse response for these filters. Then multiply the ideal
In a ternary number system there arethree digits : 0, 1, and 2. The figure shown below defines aternary half-adder. Design a circuit that implements thishalf-adder using binary-encoded signals, such
A fluorescent tube fixture takes 1 ampere when connected to a 120-volt source. A wattmeter in the circuit reads 80 watts. What is the' operating power factor of this unit
A 5-volt intelligence amplitude causes the frequency to change to ± 25 kHz. What will be the carrier frequency variation corresponding to an intelligence amplitude of 10 volts
Design and simulate a power supply that takes line voltage(120v) and produces a 15V output with less than .5% ripple voltage with the following specifications use either full wave or full bridge wav
A 50 ohm transmission line is terminated to the load (60-40j) ohm. How far from the load, a short ckt stub of a fix length of λ/8 needs to be placed so the minimum voltage standing wave ratio
Design a circuit which will multiply a 3-bit binary number CDE by 2, 3, or 5, depending on the value of a 2-bit code AB (00, 01, or 10), to produce a 4-bit result WXYZ. If the result has a value gre
A shunt motor has the following ratings: 75 kW, 240 V, 1750 rpm, 300 A. The motor is supplied with 240 V source (constant) at its armature terminals. Its armature resistance is 0.0144 [O]. At rated
For a particular IC-fabrication process, the transconductance parameter k'n = 50 µA/V2, and Vt = 1 V. In an application in which vGS = vDS =Vsupply = 7 V, a drain current of 0.8 mA is required
A. For a particular MOSFET operating in the saturation region at a constant vGS, iD is found to be 1.4 mA for vDS = 0.1 V and 3 mA for vDS = 4.0 V. What is the value of VA (in V) B. For a particular
A 25 cm length of coaxial cable with inner radius of a=2 mm, and the outer radius of 4 mm, is filled with air. If the total charge on inner conductor is 50nano-Coulombs, what are the charge densitie
Determine the height d of cable AB so that the force in cables AD and AC is one-half as great as the force in cable AB. What is the force in each cable for this case. The flower pot has a mass of 50
suppose that atransmitter sends power into a transmit antenna whose gain is +4bBi. The receiver some distance away receives a powe of -50dBm when operating with a receive antenna whose gain is -3dBi
A signal source produces a 4 volt peak-to-peak sinusoid and has a source resistance of 100 ohms. We wish to drive a grounded 10 ohm load to at least 2 volts peak-to-peak with this source. The load c
Discuss how the ethical problem solving techniques presented in this course could be applied to bribery and the acceptance of gifts. This discussion should be two paragraphs in length.
An n-bit Gray code is a way to encode numbers 0, 1, ..., 2n-1 in binary such that any two consecutive numbers (including 0 and 2n-1) differ in exactly one bit. For example, {00, 01, 11, 10} is a 2-b
Starting from the expression for the MOSFET unity-gain frequency, fT=gm/2*pi*(Cgs+Cgd) and making the approximation that Cgs>>Cgd and that the overlap component of Cgs is negligibly small, sho
A MOSFET differential amplifier such as that is biased with a current source I=200uA. The transistors have W/L=25, k'n=200uA/V^2, VA=200 V, Cgs=40 fF, Cgd=5 fF, and Cdb=5 fF. The drain resistors ar
A CG amplifier is specified to have Cgs=2pF, Cgd=0.1 pF, CL=2 pF, gm=4 mA/V, Rsig = 1k-ohm, and R'L = 20 k-ohm. Neglecting the effects of ro, find the low-frequency gain vo/vsig, the frequencies of
If the amplifier is fed from a voltage source Vsig having a resistance Rsig = 1kΩ, find the transfer funtion Vo/Vsig as a function of the complex-frequency variable s and hence the 3-dB freque