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The nameplate on a 460-V 50 hp 60 Hz four pole motor indicatesthat the speed at rated load is 1760 r/min. assume the motor to beat operating load.a) What is the slip of the rotor?b) what is the frequency of the rotor currents?c) what is the angular velocity of the stator field with respect to the stator? with respect to the rotor?d) what is the angular velocity of the rotor field withrespect to the rotor? With respect to the stator?
While an inductor is being energized the current flowing through it as a function of time is: i(t) = 56 (1 - e(-4600 · t) ) mA, for all times t > 0 and t is in seconds. What is the inductance, if a voltage drop of 1.188 V is measured across this indu..
An amplifier operates from -5V and +5V balanced power supplies. It provides a 3.2-Vpeak sine across a 150 ohm load when provided with a 0.2-V peak input from which 2.0mA peak is drawn. The average current in each supply is 20mA.
Looking at a sine wave, describe how the ROM in a DDS could use only one-fourth of the memory locations to store the sine wave look-up table. Discuss how narrowing the bandwidth of a circuit affects the noise level.
a given system delays the input by t0 units of time and then subracts the delayed version from the original signal. Calculate the frequency transfer fucntion of this system.
Determine the number of coulombs of charge produced by a 12 A battery charger in an hour. A lightning bolt carrying 20,000 A lasts for 70*10^-6 s. If the lightning strikes a tractor, determine the charge deposited on the tractor if the tires are a..
Y- Delta connected; Source voltage in the b-phase is 20 angle (-90) V (rms); Source phase sequence is acb; Line impedance is (1+j3) Ohms/phase; Load impedance is (117- j99) Ohms/phase.Draw the single-phase equivalent for the a-phase.
Define static electricity and State five sources of static electricity and Describe three methods used to reduce hazards due to static electricity
Clearcly, any noise will pass straight through to the ADC subsystem, introducing measurement error. You have two choices to mitigate this: SW filtering and HW filtering. Assume the uC sample rate, Fs, is 100 Hz with 8 bit resolution.
Given a resistor of 80-ohm connected to a 12 V battery, find the power absorbed by the resistor. What are the consequences if the resistor is rated at one-quarter watt.
(1) What does the words leads and lag represent in factor In waveform (2) How would you change the power factor if you needed to
x[n] is the input sequenceapplied to a digital filter whose impulse response h[n] is alsogiven below. Find the resulting output sequence,y[n]. Hint: There's a VERY easy way to solve thisproblem, and a way which is not so easy. If it seems hard,you..
How many liters of chlorine gas, Cl2, can be obtained at 40C and787 mmHg from 9.41 g of hydrogen chloride, HCl, according to the following equation 2KMnO4(s) + 16HCl(aq) à 8H2O(l) 2KCl(aq) 2MnCl2(aq) + 5Cl(g)
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