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Suppose that a dc machine is designed such that the voltage applied to the field VF is equal to the voltage VT applied to the armature. In a well-designed machine, which current, IF or IA, is larger under full-load operating conditions? Why? What do you estimate as an acceptable value for the ratio IA/IF under full load?
A long hallway has three doors, one at each end and one in the middle. A switch is located at each door to operate the incandescent lights along the hallway. Label the switches A, B, and C. Design a logic network to control the lights.
A 2722-kg weight is being pushed up an inclined surface at constant speed by a cylinder. The coefficient of friction between the weight and inclined surface equals 0.15. for a pressure of 6.9 MPa, determine the required cylinder diameter.
A 3.3 uH inductor is connected to a current source. The current of the source is changing according to time as 8.6 * t A. What is the voltage drop across this inductor (UNIT:mV)
Design a sequential circuit with two JK flip flops and one input, x_in. a) When x_in = 1, the state of the circuit remains the same, When x_in = 0, the circuit goes through the state transistions from 00 to 01 to 11 to 10 to 00 and repeats.
An electric heating element is connected to a 110 v circuit and a current of 3.2 A is flowing through the element. How much energy is used up during a period
Discuss the between continuous-time and discrete signals and their analysis imposed by the way discrete-time signals and systems are generated. Discuss what is meant by "nonlinear filtering".
a.) The current in a 75 mH inductor changes uniformly by 200 mA in 0.1 ms. What is the voltage across it b.) Determine the inductance of an air core coil with length 20 cm, 200 turns and a diameter of 2 cm.
determine the frequency response and the magnitude response of the z tranfer function below. please show step to step how to get the result. D is a positive interger
afigure q1.1 illustrates a three-phase power system in which an ideal three-phase ac generator with an abc phase
the power deliverd to a three phase Y-connected load is 3kw and the line-line voltage is 380v the load power factor is 0.85 lagging. determine the load current and impedance
You are given a black box, a 6 k Ohm resistor, a 40 nF capacitor, a voltmeter, and an ammeter. With these supplies you complete the following measurements at 950 Hz: You place the resistor and capacitor in series and measure a current flowing.
A beam has a solid square cross section of 100mm and is simply supported by two supports 3m apart. Calculate the dead load that can be safely supported when applied to the middle of the beam. Assuming material of the beam is mild steel.
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