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A 2-hp, 120V, 4 pole, three-phase,Y-connected, synchronous motor has a synchronous impedance of 0.2 +j6Ω/phase. The friction and windage loss is 20W, the coreloss is 35W, and the field-winding loss is 30W. Determine the powerangle and the efficiency of the motor when it delivers the ratedpower at a unity power factor.
The relative dielectric constant of the printed circuit board (PCB) is 4 and the microstrip lines have a characteristic impedance of 80W. The length of the microstrip lines are 30mm and 45mm, respectively.
The parts of this problem refer to the reflection method of solving real transformer problems: A.What is the value of Zload projected into bus (Region) 2 B.What is the total impedance of bus 2 including the projection
Discuss different applications that could use non-inverting and inverting amplifier circuits. Will the actual op amp characteristics cause any challenges if used for each application
An aperiodic signal x(t) = 2sinc(2t) is multiplied by a periodic rectangular pulse train s(t) with fundamental frequency F0 = 4 Hz and the fundamental rectangular pulse given by p(t) = 1, 1/80 t 1/80 0, otherwise to obtain a signal xs(t) = x(t..
How much resistance is required to limit the current to 3 mAif the potential drop across the resistor is 12V
Sketch the Bode plot (including the magnitude response and phase response) of a continuous- time LTI (Linear Time-Invariant) system described by the following transfer function: \(H(s) = 5(s + 2)/s^{2}(s + 10)\)
1. Find the volume of a frustum of a pyramid with square base of side 17, square top of side 9 and height 14.2. The base of a solid is a circular disk with radius3. Parallel cross sections perpendicular to the base are squares.
What is the maximum symbol rate that the twisted pair line can carry without ISI? 256-QAM modulation is used on the link. How many bits are conveyed by each symbol?
The boards have a weight of 40 lb, centered G. Determine the smallest angle Theta required for the man to support these boards, neglecting the man's weight and the friction between his shoes and the floor.
A sequential circuit has one input X, and two outputs Z1 and Z2. The outputs represent the number of 0's that have3 appeared in the last three inputs. For example, X:0110111100001011 Z1:0000000001111100 Z2:1111110010110011
Design a simple ALU (Arithmetic Logic Unit) which has three 4-bit inputs x = x3x2x1x0, y=y3y2y1y0 and z= z3z2z1z0, two control signals A and B and output S. The ALU should support the operations described in the following table
With a 500hp shunt wound DC motor, at 1800rpm, 500Vdc, FLA is 800Adc, Ra is 0.025 and Rf is 400. What would Va need to be if you wanted the motor to operate at 1000rpm at rated torque. Keeping the field current constant.
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