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An induction motor takes 350kW at 0.8 power factor lagging while driving a load. When an overexcited synchronous motor taking 150kW is connected in parallel with the induction motor, the overall power factor is improved to 0.95 lagging.
Determine the kVA rating of the synchronous motor.
For w=w0, compute the ratio of the amplitude of the voltage source over the amplitude of the voltage across the resistor,Q=|U|/V0, when V0=sqrt(2), C=8.2microF, L=7mH, and R=1.5kOhms. Is this ratio larger or smaller than one
The design of a home security system requires the use of sensors, including a sensor to measure carbon dioxide levels. Your search resulted in one sensor that provides an output range of [-2V, 1V].
Write a C program to toggle all bits of PORTB ON and OFF with a 0.5-second delay after each toggle. Assume that clock frequency is 6.25 MHz. Write inline assembly-language code inside of the delay function.
Given a voltage of 100 volts with a phase angle of 0 degrees, applied across an impedance of 50 ohms at an angle of +30 degrees. This is an inductive impedance - not TOTALLY inductive, but more inductive than capacitive.
A loop of current is placed in the xy plane in a uniform magnetic field in the positive x direction. If the current in the loop is in the clockwise direction, what is the direction of the torque on the loop
The acceptor concentration in a particular junction is 10^6/cm^3 and the donor concentration is 10^15/cm^3. Assume ni=1.5*10^10/cm^3. Find the junction built-in voltage.
Given the memory locations, values below, and one-address machine with an accumulator (the accumulator is the default destination), what values do the following instructions load into the accumulator
A uniform electric field exists in the region between two oppositely charged plane parallel plates. An electron is released from rest at the surface of the negatively charged plate and strikes the surface of the opposite plate
Write the definition of a function named timeOnHighway that receives three parameters, all of type double: mileEndingPoint , mileStartingPoint , and speed . The first two parameters indicate the mile markers on an interstate
The substrate concentration of a N-type semiconductor is ND=10^15cm^-3. the wafer is doped with NA= 1.1*10^15 cm^-3, so that a very lightly doped P-type region is created at the surface. What is the concentration of electrons in the P-type region
The memory unit, 2M x 32, is specified by the number of words times the number of bits per word. How many address lines and input-output data lines are needed And give the number of bytes stored in the memory.
Design an AC source system that can be used to power 120 Vrms, 240 Vrms, and 208 Vrms single phase devices depending upon the particular connection terminals. The system should have no individual sources with voltages larger than 120 Vrms.
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