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a 50 kHz squarewave is input to the 60 kHz low pass filter. The filter is effective at rejecting frequencies higher than 60 kHz.
a. Does it make sense that the output of the filter is a 50 kHz sinewave?
b. A 25 kHz squarewave input to the filter also produces a clean 25 kHz sinewave. How is that possible?
A serial transmission is set up for 8 bits with odd parity. The first two bytes of data are 01110111 with parity bit 1 and 01101010 with parity bit 0. From this we know that there are no errors in transmission.
Obtain polar plot using nyquist command. determine the stability of closed loop system based on nyquist criterion. design a compensator to meet the P.O. = 10%. Plot the before and after plot on the same nyquist plot.
Three single-phase two-winding transformers, each rated 25 MVA, 34.5/13.8 kV, are connected to form a three-phase bank. Balance positive-sequence voltages are applied the high voltage terminals, and a balanced, resistive Y load connected
An insurance company has made you the following retirement offer. If you pay them $100,000 now, you will receive payments of $8000 a year for 10 years. After this they will pay you $9000 a year in perpetuity (for ever).
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 .
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.
The voltage across the load must remain between 4.7 and 5.0 V for all values of load current. Come up with (draw) a voltage-divider network to supply the load. You may assume that resistors of any value desired are available.
A 25KW, 250V dc shunt generator has armature and field resistances of 0.06 ohm and 100 ohm respectively, determine the total armature power developed when working (1) as a generator delivering 25KW output and (2) as a motor taking 25KW
Consider unsteady diffusion across a membrane of thickness L. Initially, the concentration of solute in the membrane is zero. At time zero, the concentration at x=0 is raised to C0 and the concentration at x=L is maintained at zero.
Assuming that solar energy is used to charge a storage battery which then in turn is to power a lamp of 40W. Solar cell obtains power at the rate of 100milliwatts per square centimeter, and the sunlight time is 12 hours.
a) Design the doubler circuit shown in Figure 2, for which:D = d8 d4 d2 d1 and B = b8 b4 b2 b1 are each an 8421 BCD code digit. The circuit must implement the equation: 10C* + B = 2D + C
Two dc motors are compared. the first one is a 4hp dc motor which draws a current or 0.7A when the field is connected to a 150V source. the second, a 600 hp motor draws a field current of 5A when the field is connected to a 300V dc source.
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