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The speed of a 12-pole, 480V, 60Hz three-phase induction motor at full load is 560 rpm. The motor has the following parameters:
a. Compute the developed torque.
b. While the torque is unchanged, the voltage is changed to reduce the speed of the motor to 520 rpm. Compute the new voltage.
An odd parity circuit with 2^n inputs can be built with 2^n-1 XOR gates. Describe two different structures for this circuit, one of which gives minimum worst-case input to output propagation delay and the other of which gives a maximum.
Using the characteristics of given Figure, determine the resistance of the photoconductive cell at 10 and 100 foot-candles of illuminaton.
y[n + 2]- y[n +1]+ 0.5y[n] = 4x[n +1]+x[n] a. Find the system's transfer function b. Find the system's impulse response c. Find its unit step response when the ICs are y[-2] = 2 and y[-1] = 1.
When the variable resistor is adjusted to one extreme position the overall circuit voltage gain should be 3. When the variable resistor is adjusted to its other extreme position the overall circuit voltage gain should be 13.
Determine vC after five time constants. - Determine vC after 10 time constants. - Determine vC at t = 5 µs.
Choose the best answer for what a DC blocking or coupling capacitor does, assume the capacitor value is chosen to be too small. Blocks the DC and is relatively high impedance to the AC voltage. Blocks only the AC voltage going ..
Frank D. Drake, an investigator in the SETI (Search for Extra-Terrestrial Intelligence) program, once said that the large radio telescope in Arecibo, Puerto Rico, can detect a signal which lays down only a picowatt of power over entire surface of ..
Discuss the types of inference that can and cannot be drawn from this study.
The stator resistance Rs is 0.25 Ω, and the stator as well as rotor leakage inductances are negligible. All losses except in the stator and rotor resistances can also be neglected. The reflected rotor resistance, Rr' is 0.3 Ω. The magnetizing curr..
Determine the output frequency for a frequency division circuit that contains 12 flip-flops with an input clock frequency of 20.48 MHz.
Suppose the information portion of a packet contains 10 bytes consisting of the 8- bit unsigned binary ASCII representation of string "Link Layer".
Suppose a certain causal signal f(t) has a Laplace transform F(s) = 1. If f(t) is sampled at times kT where T is a constant time interval and integer k>=0, what are the sample values
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