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1. Discuss the physical significance of the right-hand three items in (6.14), and thereby explain the electrical mechanism of power output of a generator.
2. What are the usual applications of round-rotor generators and salient-pole generators in electrical power systems, and why?
The rotor resistance and reactance of a squirrel-cage induction motor rotor at standstill are 0.14 ohm per phase and 0.8 ohm per phase respectively.
A HCS12 embedded timer is in PWM mode. If the E-clock is 24 MHz, the output period is 35.33 microsec, and a scale factor of 4 is used, what is the value loaded into PWPER
Assume that the step of the person is about 0.6m. Compute the current through his legs and his step potential.
A 230V, 25hp, shunt DC motor draws an armature current of 90Aat full rated load. The armature resistance is 0.2 ohms and theshunt field resistance is 216 ohms. Determine the rotational lossesand motor efficiency at full load.
To play music, these types of players have a decoder circuit that can decode the binary representation of the piece of music to be played. The electronic signals corresponding to the notes that are to be 'played' can then be transmitted to a speak..
Chopper circuit has the parameters of a source frequenCy of 150 Hz and an on time of 3 ms. vohage of 90 V, chopper When this chopper drives an inductive load of 1.5 0 and 15 mH, determine the average load current.
An 8 bit shaft encoder is used to give the rotary position of a robot arm. What is the shaft encoder's value just before, and just after, the arm sweeps past 90 degrees while moving clockwise What is the sensitivity of the system
Write an assembly program that reads a list of characters from the keyboard and writes the sorted list in ascending order to the console screen, over and over again. Any lowercase letter should be translated to the corresponding uppercase letter
a)How large a parallel resistor Ra mustbe placed in parallel with the D'Arsonval meter movement toextend its useful measuring range to 1A b)For the design completed in Prob. a determine themeasured current that flows when the D'Arsonval metermove..
Asssume that you are to design a synchronous TDM carrier to support 30 voice channels using 6-bit samples and structure similar toT1.Determine required bit rate
Calculate the number of free electrons per cubic centimeter in copper, assuming that the maximum energy of these electrons equals the Fenni energy (m* = mol.)
An incident wave of light travels through glass (n = 1.4) to water (n = 1.33) at an angle of 350. a. What is the angle of reflection and refraction b. What is the critical angle for this system
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