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A well-behaved analog signal with a frequency of 20 kHz is being sampled. What is the sampling frequency of frequency aliasing occurs?
An amplitude modulated amplifier has a radio frequency output of 50w at 100% modulation. The internal loss in the modulator is low. What output power is required from the modulator.
Calculate the inductive reactance per meter of a single-phase, 50-Hz, two-wire transmission line. Assume each conductor's radius is 6cm and the distance between the two conductors is 3m.
The U.S. Digital Cellular provider uses a TDMA scheme for multiple access. It uses a 48.6 kbps data rate and supports three users per frame. Each user occupies two of the six time slots per frame. Compute the raw data rate provided for each user.
Design a NMOS resistive load inverter for: VDD = 5V P = 0.2 mW when Vlow = 0.1V kn = 60 micro Ampere / V^2 VTN = 0.25V Find the load resistor and the W/L ratio for the switching transistor.
Consider an industrial load that absorbs 40 kW of power with power factor 0.8 lagging from a 60-Hz transmission line of voltage VL= 240
Historically op amps and comparators have a lot of similarity in their internal circuit designs. However, they have very different uses in application circuits. Let's talk about these differences.
A 2-kHz sound wave traveling in the x-direction in air was observed to have a differential pressure p(x,t) = 10 N/m^2 at x = 0 and t = 50 μs. If the reference phase of p(x,t) is 36 degrees, find a complete expression for p(x,t). The velocity of so..
A FIR filter is depicted in the figure below. Assume that the system is at rest and an input sequence is applied to the system. Determine the first seven samples of the system output Assume that the system is initially at rest. x(n)=u(n)+u(n-1)-2u..
A 50 ohm source is connected to a 50 ohm receiver using 30 ft of RG58U coaxial cable. If the source output is 100 MHz and -30dBm, determine the voltage at the receiver in mV and dBuV [6.05 mV , 75.6 dBuV
Find an expression for the rms (root-mean-square) speed of these particles, assuming them to be spheres of diameter and density
A system is needed to measure flow, which continuously cycles between 20 and 30 gal/min with a period of 30 sec. The required output is a voltage varying from -2.5 to +2.5 V for the cycling flow range. The sensor to be used has a transfer function..
Assume the resistance of a human person was 500 ohms, if a person was struck by lightning with a peak voltage of 100,000 volts, what was the peak current that would flow through the person
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