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A balanced positive-sequence wye-connected 60-Hz three-phase source has line-to-line voltages of VL = 208V rms. This source is connected to a balanced wye-connected load. Each phase of the load consists of an impedance of 30 + j40 *. Find the lineto- neutral voltage phasors, the line-to-line voltage phasors, the line-current phasors, the power, and the reactive power delivered to the load. Assume that the phase of Van is zero.
determine that the total field B within the sample is one tesla. Calculate M and determine what percentage of the volume now consists of domains with magnetization parallel to the field.
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..
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.
Suppose you have a 2 kW electric heater rated for 220 volt operation, which you intend to operate at a reduced power dissipation of 1kW. Calculate the proper amount of voltage you would need to achieve this reduced power dissipation
What is the effective data rate of this transfer (not counting the time for reading or writing the DVDs)?
The power dissipated in the resistor is 62 W when connected to a 10V source. Find the total dissipated power when the same resistor is connected to a 5V source.
Write at least one paragraph explaining why the power factor of the motor changes as the rotor mechanical speed changesin the induction motor. evaluate when the machine is operating in motor mode or generator mode.
The stepped cylindrical tank is initially filled with liquid water at STP to a height H1. Subsequently, a plug at the bottom of the tank is removed to allow water to flow from the small hole of diameter d. The velocity v of the flowing water
In other words, your approach should be able to answer the question whether two BDDs are complements of each other, without using the complement operation.
Suppose that an inductor is formed by N turns of a conductive wire wound around a magnetic material. The magnetic material forms a circular cylinder of radius r = 10 cm, and height h = 5 cm. The inductance of the inductor turns of N is defined as:..
the worker's safety harness D-ring is attached to a 12-foot shock absorbing lanyard that is securely fastened to the structure at a point 40 feet above ground level. Does this arrangement violate OSHA standards for fall protection? Explain.
Determine the RMS generated voltage of an alternator used for a 50 Hz system if it has a flux per pole of 0.015 Wb, 72 turns per phase and a winding constant of 0.96
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