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A 3-phase, 50 Hz, 4-pole, 400 V wound rotor induction motor has a stator winding D-connected and a rotor winding Y-connected. Assume effective turn ratio stator/rotor = 2/1 ( phase basis). For a rotor speed of 1440 rpm, calculate:
(a) the slip
(b) the standstill rotor induced emf/phase
(c) the rotor induced emf/phase at this speed
(d) the rotor frequency in (b) and (c)
For a BJT common Emitter Amplifier, the AC base voltage = 1,2Vrms, Av=50, Bdc=150, Bac=200, alpha dc =0.98 and an RE of 500 ohm. What is the AC P-P voltage
What is the current phasor (magnitude and phase) supplied from the generator? - what are the current phasors (magnitude and phase) flowing through each load?
A 78 Ohm lossless planar line was designed but did not meet a requirement. What fraction of the widths of the strip should be added or removed to get the characteristic impedance of 75 Ohms?
Design an assembly code to open a vault (after entering the correct 4-number sequence "1234"), it displays it in the 7 segment display, than it displays the word OPEN when the correct sequence is entered.
A certain oil filled 100 MVA three phase transformer is rated at 345 kV / 25 kV, 75 degree C temperature rise, FOA, 60 Hz, connected delta / grounded wye. The equivalent circuit of the transformer has leakage impedance of Z
Let S measure the time-dependent strength of a material under test and So is the initial strength as measured at the beginning of test. Prior tests and evaluations have suggested that the following stress-time relationship appears to work.
Sketch basic characteristics of an-channel J-FET (ID vs. VDS andID vs. VGS) and explain why it may be used asa constant current source and a voltage controlled resistor.Indicate the parts of the characteristics where these functions canbe realized..
determine the frequency response for the LTI system specified by the LCCDE y[n] - 0.8y[n -1] = x[n]. Plot the magnitude response and phase response for -pie
Write a program to determine how many from your data set called MYDATA, which is a set of unsigned single-byte numbers, are odd numbers. Save the result in TOTODD at address 0x10 in the data memory.
The loop rotates in the external magnetic field of strength .35 T at a constant frequency of 59.7 Hz.
A voltage source is in series with a 1 MΩ resistor and a100 picofarad capacitor. The voltage source is 10cos(2π*10^3t - π/6). What is the voltage across the capacitor
how does the D'Arsonval movement work with voltmeter and ammeter i know how to design the cicuits but a little more of how the movement actually work in both cases. like for the ammeter the reason the resistor is place in parallel is to limit the ..
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