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An electrical signal with the spectrum extending from 10Hz to600Hz is recorded on a tape recoorder at 10cm per second. It isplayed back at 60cm per minute. What would be the minimum samplingrate for the playback signal if we need to digitize this signal?
A controlled three-phase six-pulse AC/DC converter is supplied with 60 Hz voltage of the line-to-ground RMS value U = 240 V with the output current ideally filtered by an inductor. The maximum DC power of the converter (Pd)max = 50 kW.
use any extragates in existing ICs for inverters when possible. Connect thecircuit and check its operation. the truth table for F1 and F2obtained from the circuit should conform with the minterms listed.
A silicon sample is 2.5 mm in length, 1.2 mm in width and 0.7 mm high. It has been doped with Boron with a doping density of 8.5 x 1016 cm-3. Assume the temperature is 300°K.
Two 16-bit numbers are present in memory location starting from 7000H onwards. Add these two numbers and store 17-bit result in memory location after data.
A WLAN uses the 1-Mbps IEEE 802.11 infrared standard and the 16-PPM modulation scheme. Compute the period of transmission (time between bits).
Design a four-bit shift register with a paralel load, usingD-flip-flops. There are two control inputs:shift and load. Whenshift t=1, the contents of the register are shifted by oneposition. New data are transferred into the register when load=1and..
A message signal, x(t) has a bandwidth of 15 kHz and an average power of 0.5 W. This signal is to be uniformly quantized with an input range of range of +-5 V. What is the bit rate of the corresponding PCM signal if the SQNR is to be greater than ..
Consider a circuit that is connected to a phasor of 120V/0 degrees. The circuit feeds a 10 ohm resistor on the "hot" lead and then the circuit branches. One branch sees a 0.5A /60 degree phasor current source (oriented with "arrow oriented right)
An RLC circuit has an initial voltage across the capacitor and polarity as marked on the circuit shown below. The switch is closed at t = 0 and a current i(t) is assumed to flow clockwise in the circuit.
A 1 V battery is connected across a series combination of a 2 k-ohm resistor and a forward-biased diode. Determine iD and vD for the diode using: (i) the ideal diode model; (ii) the constant drop model with vD = 0.7 V
A short- dipole antenna is placed at the origin while another short-dipole antenna is located at a point given in sphericalcoordinates as P (1000,π/4,π/4). Both Antennas arealigned parallel with the Z-axis .
Consequently, this form of serial data communication is known as asynchronous. Compare and contrast this against synchronous serial data communication, giving an example of a synchronous data communications standard.
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