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(a) Consider the systemx' = -ax + x^2 + rwhere x is a state variable and r is an input variable.Perform a change of variables in r, i.e., r (t) --> u (t),where the new system is linear without any approximations (hint: assume x (t) ismeasurable)
(b) Consider the systemz' = -2z + exp(r)where x is a state variable and r is the input variable.Perform a change of variables in r, i.e., r (t) --> u (t),where the new system is linear without any approximations.
A pn junction with Nd=4x10^16 cm^-3 and Na=3 x 10^15 cm^3 experiences a reverse bias voltage of 1.6V (a) Determine the width of the depletion region and the junction capacitance per unit area
Write the expression for the current through the capacitor after the switch is closed. The circuit is a 60 Volt circuit
Raffle de St. Michelle: A local charity holds a raffle every year. They have one first prize of $500, four second prizes of $100 each and ten third prizes of $50 each. This year they sold 300 tickets. (a) If you buy one ticket, what amount will you..
What should be the capacitance of a capacitor, in series with a 250-ohm resistor, that will limit the current to 1.2 A when the circuit is connected to a 600 V 60-cycle source
A series of combination having R=2Mohm and C=0.01 UF is connected across a D.C. voltage source of 50V. Determined capacitor voltage and charging current after 0.02s, 0.04s and 1 hour.
a transmission line in a computer network induces a signal delay of 1.25 ns. the signal wave front velocity is chraterized by the equation Vw=c/n,where Vw=velocity of electromagnetic wave front :c=3*10^10 cm/sec is the speed of light in vacuum and..
A capacitance C is charged to an initial voltage Vi. At t = 0, a resistance R is connected across the capacitance. A) Write an expression for the current. Express your answer in terms of some or all of the variables R, C, Vi, and t.
The electric field of a uniform plane wave propagating in lossless isotropic medium is E(x,t) = 60(pi)cos(3 10 t + 4x) ay V/m. The magnetic field at point (0,0,0) when t = 0 is 1A/m. The unit of t is second and the unit of x is meter.
A candidate material for a turbine blade application oxidizes by diffusion of metal atoms through the oxide to the metal surface, where metal and oxygen react to form the oxide. After 10 hours at 550*C, an oxide layer 8µm thick has formed.
A project manager placed an order for ball bearings for some heavy duty manufacturing machinery. What is the surface area in square millimeters of one of these bearnings if it has a diameter of 0.4 inches
Derive the state space equation of a DC motor with: 1)supply voltage and load torque as inputs and 2)armature current, angular speed as outputs.
The density of gasoline is 0.72 grams per cubic centimeter. What is the mass in units of kilograms of a 5-gallon container filled completely with gasoline Ignore the mass of the container.
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