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A 20-hp 240-V 76-A 900 r/min series motor has a field winding of 33 turns per pole. Its armature resistance is 0.09 W, and its field resistance is 0.06 W. The magnetization curve expressed in terms of magnetomotive force versus EA at 900 r/min is given by the following table:
Armature reaction is negligible in this machine.
(a) Compute the motor's torque, speed, and output power at 33, 67, 100, and 133 percent of full-load armature current. (Neglect rotational losses.)
(b) Plot the terminal characteristic of this machine.
If one of the resistors in a parallel circuit were shorted, what would you expect to see happen and could a shorted component in a parallel circuit cause an open to occur elsewhere.
a. Given the random binary data sequence 0110001011, provide waveform sketches for (i) NRZ change and (ii)split phase. b.Demonstrate satisfactorily that the split phase waveform can be obtained from the NRZ waveform.
A system (circuit) is governed by the differential equation: L dx/dt - L dy/dt = Ry(t) where x(t) is the input and y(t) is the output and L and R are an inductor and resistor. Find the complex frequencies associated with the system (circuit).
Given the electric field E = 1/z2 (8xyz ax + 4x2z ay - 4x2y az) V/m, find the differential amount of work done in moving a 6 nC charge a distance of 2 µm, starting at P(2, -2, 3) and proceeding in the direction
Calculate the midband voltage gain. - What are the open-circuit and short-circuit time constants? - Determine CC and CL.
Given 100-MHz clock signal, derive a circuit using D flip-flops to generate 50-MHz and 25-MHz clock signals. Draw a timing diagram for all three clock signals, assuming the flip-flops introduce no delay.
no3show that the current through two transistors in series is equal to the current through a single transistor of
Suppose there are two users on the cell edge. Users are scheduled on a TDMA basis, with equal time for each user. The received SINR of each user is 0 dB when it is transmitted to. Find the rate that each user gets. The total bandwidth is 1.25 MHz ..
A 1.4 mF capacitor has initial voltage of 19 V.The energy stored in the capacitor is used to light up a 0.5 KOhm lamp.Assuming that the lamp is completely dimmed when the current through it is less than 0.4 mA, for how long can the capacitor susta..
Submit the final draft of your Someone You Love essay in .docx or .rtf format, doublespaced, and with proper heading format. Choose one of the topics below, or suggest another topic to me that you find more interesting. Your essay should be about thr..
Describe how the DEKF algorithm can be used to train the simple recurrent network shown in Fig. 15.3 You may also invoke the BPTT algorithm for this training.
Find the first 10 coefficients Xn, x = 1,2.....,10 in exponential Fourier series expansion of a 1 kHz periodic rectangular pulse train with a base-to-peak voltage of 0 to k volts and a pulse width of k/10 for k = 1,2,10.
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