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The output is 1 when the pattern abca has occurred an even number of times in x(0,t). Give a state description of the system. Use a state vector approach and a minimum-number-of-states approach.
Separation of variables to solve the heat equation problem with inhomogeneous boundary conditions and evaluate your series solution in order to plot the temperature profile at a few fixed values of ti
The output is 0 if the pattern 0110 has not occurred in x(0,t); it has value 1 if the pattern 0110 has occurred but the pattern 1001 has not; and it has value 2 if both 0110 and 1001 have occurred.
An object in a microwave oven 25 cm in diameter and 4 cm thick is being warmed. Determine how deeply the signal penetrates if the objects εr is 12.5 and σ is 2 S/m at a frequency of 2.
The radial field is provided by the coils in the stator to obtain a flux density of .2 Wb/m^2 so that there is one south and on the opposite side, the north pole. The coils on the rotor, 10 turns pe
Derive a hazard-free realization (and show that it is hazard-free), of the function AC+BCD+A'B'D' using only 2-input NAND gates, assume inputs are available uncomplemented and complemented.
calculate the load voltage in a transformer if supply voltage is 240 Volts. The resistance and inductance refered to the high side are as follows: Req is 29.12 ohms, Xjeq is j12.1 ohms, Rc is 1033 o
(a) Find the Fourier transform X(Ω) of x(t). (b) Is x(t) band limited. If so, find its maximum frequency Ωmax. (c) Suppose that Ts = 2π. How does Ωs relate to the Nyquist frequenc
Typically, a speech signal that can be understood over a telephone shows frequencies from about 100 Hz to about 5 KHz. What would be the sampling frequency fs (samples/sec) that would be used to sam
how could an oscilloscope be used to display current waveforms instead of voltage waveforms. what constraints apply to your current measuring method.
given the equation: τ=(t2-t1)/ln(v1/v2) and need to derive this equation: v(t)=(const)(e-t/τ) in order to do so. How to derive the second equation properly to get the first equation
An induction load consisting of a bank of induction motors consumes 50 kW at a power factor of 0.8 lagging from a 220-V (rms), 60-Hz single phase source. By placing a bank of capacitors in parallel
A pn-junction is uniformly doped and has dopant concentration of NA = 4 x10^16 cm^-3 in the pregion at 300K. At zero bias, 20% of the total space charge region (W) is extended in the pregion. Calcul
A shunt motor rotating at 1500 rpm is fed by a 120V dc source. The line current is 51 A and the shunt-field resistance is 120 ohm. If the armature resistance is 0.1 ohm, calculate armature current a
ABC is a scalene triangle of sides a,b,c. At the vertices A,B,C infinitely long current filaments pass at right angles to the plane of A,B,C. Determine the magnetic field at the cross section of med
A continuous-time signal x(t)=tri((t-1)/2) is sampled at three rates: 10, 2, and 1 Hz. Sketch the resulting sampled signals. Because x(t) is timelimited, its bandwidth is infinite. However, most of
When a sinusoidal signal is used to frequency modulate a VHF carrier, the required bandwidth is 200 kHz. It is desired to retain the same modulation index while reducing the necessary bandwidth to 1
A 240V, short shunt, cumulative compound generator is rated at 100A. The shunt field current is 3A. It has an armature resistance of 50 milli-ohm, a series field resistance of 10 milli-ohm a field d
Design an input and output circuit state m/c Circuit normally produces an output = 1. It continues to produce output = 1 as long as the following is true: This circuit accepts "at most" one set of s
Find the output y[n] of an LTID system specified by the equation 2y[n+2] - 3y[n+1] = y[n] = 4x[n+2] - 3x[n+1]if the initial conditions y[-1] = 0, y[-2] = 1, and the input x[n] = (4)^-n u[n]
Consider a superheterodyne FM receiver designed to receive the frequency band of 88 to 108MHz with IF frequency 10.7MHz. What is the range of frequencies generated by the local oscillator for this
A transmitter transmits an AM sinal with a carrier frequncy of 1530kHz. When an inexpensive radio receiver (which has a poor selectivity in its RF-stage bandpass filter) is tuned to 1530kHz, the sig
The line current is 51 A and the shunt-field resistance is 120 ohm. If the armature resistance is 0.1 ohm, calculate the speed if the shunt-field resistance is doubled at no load condition. Suppose
Suppose a standard single-phase transformer that has a rating of a 15 kVA, 600V/120V, 60 Hz is reconnected as an autotransformer to obtain 600 V primary to 720 V secondary voltage ratio.