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A motor connected to a 220V(rms), 60Hz voltage source is marked as drawing a current of 13.5Amps(rms), with a power factorof 0.72 lagging and an efficiency of 83%. Suppose that the motor operates according to these specifications. Find a) the real powerabsorbed by the motor, b) the reactive power of the motor, e) theapparent power of the motor, d) the phasor current entering themotor, e) the effective impedance of the motor, f) the mechanical power at the output shaft of the motor, in HP, g) the value of acapacitor to put in parallel with the motor that will lead to anoverall power factor of 1.
Waves and Strings: compute the tension in the top string (i.e. E string, lowest note) of a properly tuned guitar. You will likely need to spend a couple minutes on the internet to obtain length and any other important properties of the string.
Write a short report that analyses the P&ID - Basic Neutralizer Control System: The neutralizer process may be used to adjust the pH of a feed stream.
Two magnetically-coupled coils are wrapped around a mutualnon-magnetic material. The coefficient of coupling betweenthe coils is 0.388. L1 has 500 turns and a value of 23.75mH while L2 has700 turns and a value of13.70mH.
Three 5 ohm resistors are connected in wye across a 3-phase,480V line. Calculate the current flowing in each. If one of the resistors is disconnected, calculate the current that flows in the remaining two.
How would you determine whether a given function, f(t), had finite or infinite energy. Give an example of a function with finite energy and one with infinite energy.
Design a circuit that has a low pass transfer function with a3dB band edge at 30Hz. you may use capacitors, inductors, and bothdependant and indepandant sources.
What RF bandwidth is required to send the data using QPSK? If the RRC filters in the transmitter and receiver are replaced with ones that have ? = 0.20, what are the new RF bandwidths in parts (a) and (b)?
A particular signal source produces an output of 30 mV when loaded by a 100-k ohm resistor and 10 mV when loaded by a 10-k ohm resistor. calculate the thevenin voltage, Norton current, and source resistance.
Without any external voltage what is the electric field direction within each junction Are the diffusion currents in the two junctions from E to B and B to C
A mixture consisting of 0.100 mole N2, 0.050 mol O2, 0.200 mole CH4, and an unknown amount of CO2 occupied a volume of 11.1 L at 27°C and 1.00 atmpressure. How many moles of CO2 are there in this sample
A three phase Y-connected induction motor operates at 220 volts, has a power factor of 75% and an efficiency of 84% when delivering 8HP. a) what is the current in any one of the phase windings
explain the function of frequency dial and frequency range.
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