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A three-phase 60-Hz induction motor runs at 715 r/min at no load and at 670 r/min at full load.
(a) How many poles does this motor have?
(b) What is the slip at rated load?
(c) What is the speed at one-quarter of the rated load?
(d) What is the rotor's electrical frequency at one-quarter of the rated load?
A parallel circuit contains four branches with resistors values of 4.7k, 5.6k, 8.1k and 10k. Which branch has the largest current flow
How tp Build Automation and Control System (BACS) is the brain of the building ? and What is the Conceptual Model of Smart Grid Framework by IEC ?
At the instant shown, car A has a speed of 20km/h, which isbeing increased at a rate of 300km/h2 as the car entersan expressway. At the same instant, car B is decelerating at250 km/h2 while traveling forward at 100 km/h.
From the 1H NMR perspective, the human body is composed primarily of fat hydrogens and water hydrogens (H2O). The resonance frequency difference between the NMR signal from these two types of hydrogens is approximately 220 Hz on a 1.5 Tesla imager..
1- What is the magnitude of the impedance of an inductor of 34 H at an angular frequency of 783 rad/s (0 decimals in k) 2- What is the phase angle of the impedance of an inductor of 87 H
A voltage transformer for use on an 11 kV system has a star connected primary. If the turns ratio is 100/1 what will be the residual voltage of the open delta winding?
Develop the pseudo-code for a program that will retrieve 2 bytes (NUM1 and NUM2) from memory, determine which is closest to the numeric value 50, and indicate the result by setting a variable named "CLOSEST" to 1 (if 1st byte is closest) or 2
For a maximum positive envelope voltage +12 V and a minimum positive envelope amplitude of +4V, determine the modulation coefficient and percent voltage.
A line charge of density (rho)l [C/m] is in the form of a semicircle of radius a lying on the x-y plane with its center located at the origin. The semicircle starts at (phi)= pie / 2 and ends at phi = 3(pie) / 2 in cylindrical coordinates.
using the time independent one dimensional schrodinger equation find the expression of the allowed energy levels for
Implement the carry-out and sum functions for a 1-bit full adder using a 3-to-8 decoder block with active-low outputs and additional gates (what gate types should be used). Complete the truth table and draw the circuit diagram
Find the amount of electrical energy exdpended in raising the temperature of 45 litres of water by 75°C. To what height could a weight of 5 tonnes be raised with the expenditure of the same energy.
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