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A three-phase, 60-Hz, four-pole, 10-hp, 460-V (line-line, nns) induction motor has a full-load speed of 1746 rpm. Assume the torque-speed characteristic in a range of 0- 150% rated torque to be linear. It is driven by an adjustable-frequency sinusoidal supply such that the air gap flux is held constant. Plot its torque-speed characteristics at the following values of frequency f: 60, 45, 30, and 15 Hz
a baseband digital communication system that sends plusmn a valued rectangular pulses through a channel at a rate of
One of the biggest challenges with log systems, like the ones used for Intrusion Detection Systems data, is the amount of disk space that they require. For example, storing a message like: "User1 login success", contains 19 characters
Which transistor bias circuit arrangement provides good Q-point stability, but requires both positive and negative supply voltages.
The switch in the circuit has been in position a for a long time. At t=0 the switch is moved to position b. A.Calculate the initial voltage on the capacitor ifv = 200V , and i = 1.9mA . B. Calculate the final voltage on the capacitor. C. Calculate t..
Assume an analog (1st Generation) dual mode mobile phone that is designed to operate in both the 900 MHz and 1900 MHz band which has been allocated for cellular networks. The mobile phone is using a superheterodyne receiver with a 500 MHz IF for b..
20 SI fibers, 2 km long each, are spliced together for a 40 km link. Each fiber has a loss rate of 1-dB/km and a numerical aperture of 0.24. Each splice adds 0.5 dB of loss. A laser diode has a threshold current of 10 mA and emits at 3 mW/mA rate.
Obtain the z transform and find the z transform - solve the problem for the first 30 samples. Plot both analytical and the numerical results in the same figure.
Calculate the voltage drops across R1 and across R2. Measure total current for the circuit and compare it to your calculated value in step 1. Be sure to provide a screenshot displaying the measured result.
How to compare a number of existing building designs with varying structural systems to establish their embodied energy (i.e. different height, width, materials etc).
The transmit antenna gain is 2.1dB, and the receive antenna gain is 1.6dB. The received is 18Km away from the transmitter. The receiver has a Noise Figure of 8dB, Bandwidth 1.7 MHz and the Data Rate is 640K bps. You may assume T0 = 290K.
Design a prototyping system of battery management systems with fully controllable bi-directional power electronic converters
design a digital logic circuit to control the electrical power of the ignition system in a speed boat engine. the
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