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A coil of resistance 5 and inductive reactance 12 is connected across a supply voltage of 526 30° volts. Determine the active power in the circuit.
At a location in Europe, it is necessary to supply 300 kW of 60-Hz power. The only power sources available operate at 50 Hz. It is decided to generate the power by means of a motor-generator set consisting of a synchronous motor driving a synchron..
What are the types of motor Which motor is user in Car Engines which is the most efficient motor How much electricity is needed for single rotation of general motor
A 50Ω transmission line has a receiving end load impedance that produces a standing line wave with a trough on the line of 4.1V. The maximum voltage on the line is 8.14 absolute peak. The first maximum voltage location is 0.342 wavelengths away fr..
In anaudio CD, the audio voltage signal is sampled about 44,000 timesper second, and the value of each sample is recorded on the CD surface as a binarynumber. In other words, each recorded binary number represents a single voltage point on theaudio..
Design an 8 GB memory subsystem for a desktop PC system employing DDR3 SDRAM chips on a standard DIMM with ECC and 72 data lines (for data and ECC). The SDRAM chips use a 1KB page size, 8 banks, and tRCD = CL. The DIMMs employed are 4GB PC3-1..
1) Determine the resistance range for resistors with the following color codes: a. Red-Orange-Orange-Silver b. Gray-Red-Red-Gold c. Yellow-Purple-Yellow-Gold 2) Determine the color code for the f..
Eble Company proposes to invest $6 million in a new type of text printing equipment. The fixed costs are $1 million per year. The equipment is expected to last for 5 years. The manufacturing costs per hammer is $1. Calculate the break-even volume ..
A portable battery supplies electricity to an external circuit for 2 hours. The voltage across the terminals of the battery is observed to increase from initial voltage of 5V to 10V (linearly) and the current increases from 1A to 2A (linearly) in ..
a. Draw the block diagram for a coherent receiver for QPSK using the same basis signals as in problems ("What frequency must be used for basis symbols f1 = sin(pi*ct) and f2 = cos(pi*ct) with a symbol period of 1/(9600Hz) to contain 6 cycles of th..
A 20-Hp, 240VDC, 4-pole Shunt motor operates at rated load and 1700rpm and an efficiency of 88%. It has armature resistance of 0.2Ω and field resistance of 240Ω. Find: a)Power input to the motor b)IFLA of the motor
The voltage gain of a precission amplifier is determine by the ratio of 2 resistors.the gain must be accurate to within +/- 2.5% of the design value over a temperature range 0-40 degrees and a period of 5 years.
1) 70 lbs/hr of steam at 300 psia, 500oF passes through a turbine which expands it to a pressure of 30 psia. If the turbine operates with an efficiency of 70%: a) What is the temperature of the steam leaving the turbine b) What is the quality (% v..
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