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Consider the two-pole two-phase induction motor having two windings displaced 90° in space shown in Figure.The fields produced by the windings are given by Ba = Kia(t) cos(θ ) and Bb = Kib(t) cos( θ-90°). The two-phase source produces currents given by ia(t) = Im cos( t) and ib(t) = Im cos( ωt- 90° ). Show that the total field rotates. Determine the speed and direction of rotation. Also find the maximum flux density of the rotating field in terms of K and Im.
Three loads 3+4j are connected in delta to a 208-V, three phase line find line current, power factor, real power, reactive power and complex power
Develop an effective electrical maintenance program for a hotel complex comprised of a main hotel with 764 rooms, 12 two bedroom cottages, spa, swimming pool, three restaurants and sports bar lounge.
Suppose the FCC allocates 300 kHz channels for a high quality video conference service. A service provider decides that this service requires 720 kbps (not including overhead and error control) for each channel.
Real inductors have series resistance associated with the wire used to wind the coil. Suppose that we want to store energy in a 10-H inductor. Determine the limit on the series resistance so the energy remaining after one hour is at least 75 perce..
Determine the values of Saturation and load current
Using D-type flip-flops, design a synchronous Moore finite-state machine that monitors two inputs A and B, and asserts a scalar output if the number of 1s observed on the inputs is a multiple of 4.
a positive charge of magnitude q1 lies at the origin. derive an expression for the incremental work done in moving a
a) Construct a choice table for interest rates from 0% to 100%. b) Which roof should you choose if your MARR is 12% what is the actual value of the IRR on the incremental cost?
Your cousine has just bought a used car for $600. He is to pay for it as follows. A $ 2,000 down payment and 24 end of months payments of $ 177.28. What nominal annual intereste rate is being paid what is the actual interest rate
Two input capture events occur at counts 0x1037 (first event) and 0xFF20 (second event) of the free-running counter. How many counts, in decimal, have transpired between these two events
Comparing Error probabilities with BPSK and QPSK systems, A BPSK system and a QPSK system are designed to transmit at equal rates; that is, two bits are transmitted with the BPSK system
Assume dual rail logic. Dual rail logic means that both a variable and its complement are available as inputs to the logic block, such that an inverter is not needed to generate B' from B.
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