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A synchronous motor improves the power factor of a load of 200kW from .8 lagging to .9 leading.Simultaneously the motor carries a load of 80 kW .
Find :
i) KVA rating of the motor.
ii) the power factor at which the motor operates.
iii) the leading KVAR supplied by the motor.
1) When discussing the generation of electron/ hole pairs by light in semiconductors is it best to use the wave or particle rendition of light energy. 2) In what type of electron transition from valence to conduction band is momentum conserved, dir..
Assume that you are adding two 4-bit numbers. What does a carry-out (in the fifth place) indicate. Does this carry-out indicate something different when we add two positive numbers, a positive and negative number, or two negative numbers.
Your circuit should consist of only the following elements: one 1 ohm resistor, one 2 ohm resistor, three 10 ohm resistors, three ideal constant voltage sources, and three ideal ammeters,
Laverne Industries stock has a beta of 1.27. The company just paid a dividend of $.77, and the dividends are expected to grow at 5.2 percent. The expected return of the market is 11.7 percent, and Treasury bills are yielding 5.2 percent. The most rec..
A certain electronic power supply requires 25 W of input power. It can produce an output power of 20 W. What is its efficiency, and what is the power loss?
Looking at feedback and some Opamp problems, If the unity gain frequency is 5 MHz and the midband open-loop voltage gain is 200,000, what is the cutoff frequency?
A permanent-magnet automotive fan motor draws 20 A from a 12-V source when the rotor is locked (i.e., held motionless). Find the armature resistance.
design a program for a microcontroller that takes in an input for hundreds, tens and ones in the form of a7 segment display. The user holds down either of the three buttons to increment the hunreds, tens or ones position - which is shown to be inc..
Two capacitors labeled A and B are connected in series. They have the same charge but A has twice the voltage across it than B has. Which capacitor has the greatest capacitance
Use rail voltages of +/-15V. Sketch the circuit diagram and the voltage transfer characteristic (Vout vs Vin) Discuss how you chose the values of the components and comment on how accurately you think you can achieve the specification.
Slots in the broad wall of a rectangular waveguide scatter power symmetrically, so that they can be modeled as a shunt admittance,Y, in a transmission line. Consider the waveguide structure below, with four equally space slots .68 lambda apart
Considure a circular disk in the x-y plane of radius 5.0 cm.Suppose the charge density is a function of radius such thatρs = 12ρ nC/cm2 (when ρis in centimeters). Find the electric field intensity a point 20.0cm above the origin on the z-axis.
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