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Use computer graphics/ or by hand to illustrate 6-pole stator winding of an AC machine. For wt = 0 and wt = 180o show the phasor diagram of phase currents, polarity of currents in individual conductors, and the flux paths.
how does your answer change if the bubble is elongated in the direction of the electric field and sphere and the dielectric shell are placed in an initially uniform electric field E 0 in the z direction.
Determine the input x[n] so that the corresponding output of the above system is y[n] = delta[n] - delta[n - 1] Determine the output y[n] when the input is x[n] = cos(0.5pin) for - infinity
HCI is a polar molecule, with a dipole moment of 3.44 X 10^-30 [C.m] per molecule. If it is known that the molecular bond distance is 0.136[nm], find the magnitude of the net displaced charge in each molecule.
what would the relative sensitivity of the IR detector be if you use FREQOUT to send a 35 kHz harmonic? What is the relative sensitivity with a 36 kHz harmonic?
Step-down transformer
If the total power amplification through the receiver stages is G_R find the output power of the receiver. If the noise power at the output is identical to the noise power at the input of the receiver, find the NF for the receiver.
A three phase 4.157kv 60hz power system serves a 2880kva load pf=.8 lagging. Draw the ac equivalent circuit with load impedance element equated. The load is delta connected. solve for all the current (6 total).
Add Z1 = 3ej30 degree and Z2 = 4e -j60 degree together. Write your result in both rectangular and polar form. In polar form, indicate whether your angle is in radians or degree s. Multiply Z1 = -2 + j3 and Z2 = 4 + j2 together.
Gold cost about $100 an ounce in 1971. In 2007, the cost of an ounce of gold is hovering around $800. compute the average price increase for gold.
calculate the mmf when the machine operates at rated voltage at full load? PLease explain how to get the solution to this problem?
what is the range of sampling frequencies you can use such that you don't violate Nyquist theorem and still meet or exceed the needed resolution when you perform the FFT operation on the full set of collected data
Three loads are connected in parallel across a single-phase source voltage of 240 V (RMS). Load 1 absorbs 12 kW and 6.667 kVAR; Load 2 absorbs 4 kVA at 0.96PF leading; Load 3 absorbs 15 kW at unity power factor.
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