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1. The slip at full load for a three-phase induction motor is 0.04 and the rotor current at starting is 5 times its value at full load. Find the starting torque in per unit of full-load torque and the ratio of the maximum torque to full load torque and the slip at which it takes place.
2. A 220-V three phase four-pole 60 Hz squirrel-cage induction motor develops a maximum torque of 250 percent at a slip of 14 percent when operating at rated voltage and frequency. Now, assume that the motor is operated at 180 V and 50 Hz. Determine the maximum torque and the speed at which it takes place.
How is an infrared signal generated in a remote controller of a TV?
An engineer decides to take 600 samples at sampling frequency 9000Hz. A Fast Fourier Transform (fft) program was applied to obtain the frequency spectrum of the signal. What is the frequency resolution,df, for the analysis
Find the voltage V1 and the current through each inductor in the circuit of given figure.
An ac circuit with 4.157kv 60hz with a load of 2880 kva load and pf=.8 lagging find all the currents (6 total), also draw the diagram.
Find the present velocity (LSB = 1°).
Is the bridge balanced? - Using mesh analysis, determine the current through the capacitive reactance. - Using nodal analysis, determine the voltage across the capacitive reactance.
design a system that has an output of 1 when the input has been 0 for exactly 7 clock times first by using a 4 bit
Referring to the network of given figure, is Va = 8.8 V the correct reading for the given configuration?- If not, which element has been connected incorrectly in the network?
Do this using for loops. For your first prompt you will enter the number N of integers that will follow, then you will be prompted for each integer. Compute the sum and average and provide the output. Do it 3 times using the Matlab, Python, C++
Determine the tap settings required to increase the voltage at bus 3 to 0.95 p.u., while causing as few high voltage violations as possible at the other buses.
Vgs is the switchcontrol voltage. Find the switch on-resistance Rds and the voltageVds obtained when Vgs=5V and Id=1mA. If μp=0.5μn what must bethe PMOS device W/L to provide the same NMOS on-resistance. AssumeVtn=|Vtp|.
Explain the difference between TDM and TDMA.
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