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Two loads are connected to the system through 480 Volt bus. Load 1 is Delta connected with a phase impedanace of 10 with an angle 30 degrees (10<30) ohms and load 2 is Y connected with a phase impedanace of 4 with an angle 36.87 degrees, (4<36.87) ohms. All line impedances are neglected.
Determine the total current supplied by the system and when there is a Y connected capacitor to the bus and the phase impedance of the capacitor is 5 with an angle of -90 degrees (5<-90)ohms, determine the total current supplied by the system.
a. Draw a block diagram of a closed-loop control system. b. Use the block diagram to describe how the system works. c. What is the advantage of this system over an open-loop system
For most low reluctance materials currently available and used in practical magnetic devices such as transformers, the slope of the BH curve may be always be considered constant over the possible range of operation of the device.
Nanowire with square cross-section: Starting with the time-independent Schrodinger equation: (a) use separation of variables to obtain three ordinary differential equations (ODEs) (b) solve the ODEs and obtain the solution that satisfies the boundary..
For a circuit we would like to implement, there are two control signals: x and y. If xy = 01, an 8-bit value R is incremented by 1 and control goes to a second state. If xy = 10, R is cleared to zero and control goes from the initial state to a th..
A system has a characteristic equation: q(s) = s3 + 20s2 + 5s + 100 = 0 Determine whether the system is stable using the Routh-Hurwitz criterion. Determine the roots of the characteristic equation.
Calculate the critical clearing angle and plot the swing curve for the machine - What is the power angle at the end of the 10 cycles?
very useful not only in obtaining the rectangular and polar forms of complex numbers
A silicon abrupt junction, approximated by a step junction, has a doping of NA= 5 x1015/cm3 and ND= 1015/cm3 and a cross-sectional area (A) of 10-4cm2. Assume the depletion approximation, VA=0, and ni=1010/cm3 to: a. Calculate Vbi.
An internet access provider (IAP) owns two servers. Each server has a 50% chance of being "down" independently of the other. Fortunately, only one server is necessary to allow the IAP to provide service to its customers
Derive the dynamic model and average value circuit of a buck converter assuming the ESRs of the inductor and capacitor are not equal to zero.
Point A is at an electrostatic potential of +1V relative to point B in a vacumm. An electron initially at rest at B moves to A. What energy (in J and eV) does the electron have at A What is its velocity
a 60-kHz sinusoidal signal is applied to an amplifier with a gain of k=2. the circuit is built with an lm741 opamp with power supplies +-13V. find the largest amplitude the signal may have before it is limited by slew rate constraints.
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