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A75-kW, 3-phase, 440-V (line to line), 4-pole, 60 Hz Y-connectedinduction motor. When the motor runs at 1710 rpm, the line currentdrawn from the supply is 78 A at 0.85 PF lagging. Given that,stator iron loss is 2kW, windage and friction losses are 1.2kW andresistance between two stator terminals = 0.4W, Calculate:a. Synchronousspeed b. Slip c. Electrical input power tothemotor d. Stator copperlosses e. Power supplied to therotor f. Rotor copperlosses g. Mechanical power supplied totheload h. Efficiency of themotor i. Torque developedat rotor speed 1710rpm j. Draw the power flow diagram
Sitting in front of you is a box; you cannot see iside the box. The box has a power cord that is plugged into a working wall socket. There is a wire coming out of the box; the end of the wire outside the box is exposed (not insulated) and is not c..
the z-axis carries a 10mA current in the +z direction. A second line of current parallel to the first is located at x= 0, y=3cm carrying a 10 mA current in the -z direction. A rod exists in the y-z-plave from y= 1cm to y= 2 cm. velocity u = 2m/s z..
What characteristics of CMOS devices make them a desirable digital logic technology to use in portable electronic devices, such as MP3 players What device properties influence the operating speed and utility in portable electronic devices
(b) This voltage is measured using a defective voltmeter, which always indicates a lower reading than the actual value. Suppose the voltmeter reading is 2.5*10^(-4). Calculate the probability that the error is not more than 0.5 *10^(-4).
Interface TTL logic to 120 VAC lamp. In this part of the lab, you will interface lowpower solid state electronics to the "outside world" by switching the 120 VAC lamp on and off using the AND gate from the previous experiment.
Consider a Si phtodiode that is designed for operation at 900 nm. GIven a choice of two possible AR coatings, SiO2 with a refractive ndex of 1.4 and TiO2 with a refractive index of 2.3, which would you use and what would be the thickness of the AR..
Design a logic circuit to produce a high output only if the input, represented by a 4-bit binary number, is greater than twelve or less than three. Implement a minimized circuit using only NAND gates.
The input impedance of a 31cm long lossless transmission line of unknown characteristic impedance was measured at 1 MHz. With the line terminated in a short circuit, the measurement yielded an input impedance equivalent
You will be asked to design the logic circuit such that a 7-segment display can be know the number of people who are in the room. Note: never going to be the case that a person joins the room at the same time another person leaves.
Low-cost audio power amplifiers often avoid direct coupling of the loudspeaker to the output stage because any resulting dc bias current in the speaker can use up (and thereby waste) its limited mechanical dynamic range.
a power source is giving 12 V to a circuit. In the circuit there is a resistor. Therefore, would the voltage drop 12 V when the charge moves across the resistor making there 0 V in the circuit after the resistor.
Draw a state diagram for an FSM (Moore machine) with no inputs and three outputs x, y, and z, where xyz should always exhibit the following sequence: 000, 001, 010, 100, repeat. Make 000 as the initial state.
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