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Modern Control Systems Twelve Edition
Mathematical Models of Physical Systems
• All the answers must be type-written.
• Wherever appropriate, illustrate your answer using a block diagram.
Question 1:
Briefly describe the following control system terms. Give an example of each.
(a) Open-loop control
(b) Closed-loop control
Question 2:
Using a block diagram, develop a control system to fill a container with water after it is emptied through a stopcock at the bottom. The system must automatically shut off the water when the container is filled. Explain the operation of the control system you developed.
Consider the half-wave rectifier below. Assume the transformer output has amplitude 10.0 V and the diode forward voltage drop is zero. (a) What is the average output voltage (b) What's the RMS output voltage
A majority logic function is a Boolean function that is equal to 1 if the majority of the variables are 1. the function is 0 otherwise. write an HDL user-defined primitive for a 3-bit majority function.
a voltage v(t) = 24cos(2000t-45degrees) is applied across a parallel connection of a 5kΩ resistor and 100nF capacitor. find the steady state current ic(t) through the capacitor and ir(t) through the resistor.
Also, if the cursorreaches the end of the screen it should wrap around to the otherside of the screen. If no direction is designated, the cursorshould stay put. Also, the system should show the direction selected on a set of 8 LEDs. When the curso..
an fm transmitter delivers to a 50 ohm antenna a signal voltage of V(t)= 75sin(10^8 t+2 sin 10^3t) determine(a) carrier frequency (b) Intelligence frequency (c) modulation index (d) Total Power in FM signal
Design the graph for the following functions and what is the average signal power of this signal?
Explain an engineering solution for the BP Oil Spill in the Gulf of Mexico. Discuss the impact of the above engineering solution in an environmental context. Do not discuss the environmental impact of the BP Oil Spill.
Use contraction beginning with a 4-bit adder with carry out to design a 4-bit increment-by-2 circuit with carry out that adds the binary value of 0010 to its 4-bit input. The function to be implemented is S=A+0010.
You've formed a band, despite advice to the contrary. Actually, the band is pretty good except for the fact that the lead singer (who owns the drum set, the microphones, and the garage where you practice) is a bit tone-deaf.
The surface charge density throughout the z = 0 plane isρs = 1/ρ[C/m2],where ρ is specified in meters. Find the total chargeQ that is contained in a circular disk of radius 1.0[m]that is centered about the origin in the same plane.
A 1.0 dc voltage source is connected across a 10 ohm resistor. What is the current through the resistor if (a) the voltage source is ideal (b) the voltage source has internal resistance 0.1 ohm (c) internal resistance 1.0 ohm
the forward-bias current in a gaas pn-junction at t 300 k is id 15 ma. the reverse-saturation current is is 10-19 a.
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