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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
The oil and vinegar in a container of salad dressing separates with the oil floating to the top. What happens to the hydrostatic pressure at the bottom of the container
First do this problem for a 5x5 board and the point charge on the center square. Next do it for a 7x7 square and the point charge on the center square. Write a computer program for 101x101 board. de
A chip design company comes up with a new 4-stage pipelined design to execute instructions such that stage s1 takes 30 ns, s2 takes 30 ns, s3 takes 50 ns and s4 takes 30 ns of processing time.
Design and simulate a power supply that takes line voltage and produces a 15V output with less than .5% ripple voltage.
Design a single state amplifier that satisfies the following specifications. State the transistor used and show all equations. 1. The voltage gain is greater than or equal to 0.9 and less than or equa
A balanced star load of 8+j6 O per phase is connected to three-phase, 230 V supply. Find the line current, power factor, power, reactive VA and total VA.
An accelerating voltage of 2.45 *10^3 V is applied to an electron gun, producing a beam of electrons originally traveling horizontally north in vacuum toward the center of a viewing screen 35.3 cm a