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A Zener diode has the specifications VZ=5.2V and PDmax.=260mW. Assume RZ=0.(a) Find the maximum allowable current iZ when the Zener diode is acting as a regulator.
(b) If a single-loop circuit consists of an ideal 15-V dc source VS, a variable resistor R and the described Zener diode, find the range of values of R for which Zener diode remains in constant reverse breakdown with no danger of failure.
The fiber has a loss of 0.25 dB/km, and there is a splice with a loss of 0.1 dB every km. The coupling loss at the receiver is 0.5 dB, and the receiver uses an InGaAs APD with a sensitivity of -39 dBm. Find the system margin.
(a) ZL = 80+j60 , what is the load reflection coecient. (b) Design a short circuit stub matching circuit to match the load to Z0 of 50-ohms. State the distances in wavelengths and in centimeters.
A microwave system requires a +4-dBm audio level to provide 100% modulation. Determine the voltage level required if this is a 600 ohm audio system.
What happens to the propagation delay of the N-bit full adder as N is increases from 2 bits to 32 bits Compare and contrast this method of building an adder with the carry look ahead method described in your textbook
Starting from the appropriate Maxwell's equation determine the relationship between tangential components of the electric fields on either side of a boundary separating two dielectric meddia with dielectric permittivity e1 and e2 .
DESIGN A mod 6 counter that counts in the natural sequence.DO NOT include the undesired states in your design (therefore, you will have don't care condition ). show all steps for the complete design of this synchronous counter
The simple inexpensive hydro turbo-generator (turbine mated with electric generator) that you intend to buy has a working efficiency of 60%. Answer the following (show your work).
A small ac motor, draws 100 VA from its 120-Vrms, 60 Hz ac source and consumes 50 W. Find the rms current the motor draws from the supply.
The flat circular disk rotates about a vertical axis through O with a slowly increasing angular velocity ?. Prior to rotation, each of the 0.44-kg sliding blocks has the position x = 22 mm with no force in its attached spring.
When the two windings are connected to a a.c supply of 50hz, the field current is 0.1A, the armature current is 100A and the phase difference between them is 60 degree. calculate the average torque and maximum torque.
A separately excited dc generator produces 400 v at 1500 rpm under open circuit conditions. Find the induced emf if the speed changes to 2000 rpm. Assume the flux is constant.
A. determine the mean, variance, and standard deviation B. find the three quartiles and the interquartile range C. Prepare a box plot for the data and determine if there are any outliers present.
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