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1. Find VE and IC in the following figure.
A three-phase, 60Hz, wye-connected synchronous generator has balanced line-to-line voltages of 480V at its terminals. The generator is supplying power to two balanced and delta connected, three-phase loads. the first load is made up
a voltmeter is used to measure a known voltage of 100 v. twelve percent of the readings are within 0.5 v of the true
Suppose f=20kHz and linear quantization is adopted. Calculate the PCM code when t0=10μs, maximum quantization error, the dynamic range, and the best and worst signal to quantization noise voltage ratio.
An LED with a rated range of Vf = 1.4 V to 1.8 V at If = 20 mA is connected to a driver circuit with a peak output of 14 V. What value of current. limiting resistor would be needed to limit the LED current to a maximum value of 20 mA.
Three two-input "AND" gates have their outputs connected to an "OR" gate. The first "AND" gate has each of its inputs at logic HIGH level. The second "AND" gate has each of it's inputs at logic LOW level.
Design a 4-bit down counter with truncated sequence that count down a truncated sequence from 1111 to 0101. On reachingthe count value 0101, the counter must preset to 1111. Also draw its timing diagram.
In class we saw an example of 'Beat note'. In this problem we consider a more general case. Let fc > 0, fd > 0 and define a signal x as.
b) Calculate the armature current at start c) The motor is now used as a generator. Calculate the speed of the machine if the armature current is 80A and there is a 230V at the motor's terminals. Assume a constant flux.
Suppose it is known that a 5MHz transducer axis makes an angle of 30 degrees relative to the direction of motion of blood in a vessel. If the Doppler frequency is measured to be +500Hz, what is the velocity of the blood
A 4.5-volt series circuit consists of two resistors. Resistor A has three times the resistance as resistor B. An ammeter records a current of 160 mA of current. Determine the resistance values of resistors A and B.
what is the annual value to the plant owner of a 1% increase in the capacity factor of a 1,200-MWe nuclear power plant, in $/year. For example, assume the plant capacity factor increased from 0.875 to 0.885. Disregard the minor effect of capacity ..
A 50 kw, 120 - V shunt generator has Ra = 0.09 ohm, Rfw = 30 ohm and external field resistor Rfx = 15 ohm. The generator delivering the rated load at terminal voltage. a. find generated emf Ea
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