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A 440-V, 60-Hz, six-pole, wye-connected, wound-rotor induction motor with a full-load speed of 1170 r/min has the following per-phase parameters referred to the stator:R1 = R'2 = 0.5, Xl1 = Xl2 = 2 , Xm = 40 , and a stator-to-rotor turns ratio of 2.5.
The scheme of Figure is employed for speed control with Rd = 0.02 and R = 1. For a speed of 1000 r/min at 1.5 times the rated torque, find the duty ratio δ, neglecting friction and windage, and using the equivalent circuit with jXm moved adjacent to the stator terminals.
Q. A rigid 50- coaxial transmission line has air as dielectric. If the radius of the outer conductor is 1 cm, find the cutoff frequency
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banking system is the collection of financial entities, infrastructure and practices which support financial transactions . system tech is a software system to handle their transa
The block diagram for a 3-bit ripple counter is shown in Figure (a). Obtain a state table for the number of pulses N = 0 to 8, and draw a state diagram to explain its operation.
For the circuit in figure, find the current and voltage drop at every resistor
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Consider a forward-biased diode with a load resistance. Let the static volt-ampere characteristic of the diode be given by Equations, and typically represented by Figure. (a) Fo
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2. A 6 pole lap-wound armature having 720 conductors, rotates in a field of 20.35 mWb. (a) If the induced current is 72 A, what is the torque developed by armature? (b) If the indu
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