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compute the fourier transform of the following signals, using the symbolic manipulator to perform the integrations. Plot the signal x(t) and the magnitude |X(&)| of the fourier transform
a) x(t) =2e ^ (-4t) cos (10t) u(t)
b) x(t) = 2te ^ (-2t) u(t)
How does noise affect the measurement signals in analog and digital data lines. Why is one signal sensitive to noise and the other one is not
A new type of Schottky diode is optimized for low-voltage applications. It has typical forward voltage drop of 0.2 V, but its leakage current can be as high as 80 mA. It is being considered for a 12 V to 2.5 V converter with 50 W load.
A link is transmitting 10 Mbps in a bandwidth of 10 MHz using 1 mW of power. (Box 1) What change will you do to double the data rate and why (Box 2) How can you use the link if the noise were larger than the signal
A sinusoidal current is zero at t = -0.625 s and increasing at a rate of 8000pi A/s. The maximum amplitude of the current is 5 A. a. What is the frequency of i in radians per second b. What is the expression for i
You are lowering two boxes, one on top of the other, down the ramp shown in the figure by pulling on a rope parallel to the surface of the ramp. Both boxes move together at a constant speed of 16cm/s.
How much power (in watts) is transferred to or from the inductor when the time is 1 ms? The current flowing through the inductor is given by 5e^-200t The inductance is 107 mH
A balanced Y-connected load of 100 + j50 Ohm is connected to a balanced three-phase source. If the line current is 42 A and the source supplies 12kw, determine (a) the line voltage; (b) the phase voltage.
Consider an ideal op-amp in inverting amplifier configuration with feedback impedance Rf=7ohms and an input impedance consisting of a series RL: Ri=9ohms and Li=5H. Let h(t) be the impulse response of the overall amplifer.
Analysing spectrum anlyser output, A spectrum analyzer is connected to an unknown signal. The spectrum analyzer displays the power level of signals in dBm vertically and frequency horizontally. The spectrum of the unknown signal creates the follow..
A clock signal of 100 MHz (10^8 Hz) is available. Design a circuit that generates a sec- ond clock signal of 12.5 MHz. Design a 3-bit binary counter and the most significant bit is the desired clock signal.
Wastewater leaving the ACME cheese factory must be neutralized to a pH between 6.8 and 7.2. Citric acid is available to decrease pH and sodium hydroxide is used to increase pH.
A circuit that is made from a voltage source in series with the switch then in series with the parallel set of a resistor and a capacitor. The switch is originally open, it is then closed.
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