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A three-phase, 600 MVA generator has a rated terminal voltage of 22 kV (line). The stator winding is star-connected and has a resistance of 0.014 Ω/phase and a synchronous impedance of 0.16 Ω/phase. Calculate the voltage regulation for a load having a power factor of
(a) unity;
(b) 0.8 lagging.
The temperature decreases by 33.8 C°. Determine the fractional decrease L/(LSilver + LGold) in the rod's length, where LSilver and LGold are the initial lengths of the silver and gold rods.
The required exposure energy for a positive photoresist is 140 mJ/cm2 and for a negative photoresist is 9 mJ/cm2. Assuming negligible times for loading and unloading wafers, compare the wafer throughput for positive photoresist and negative photor..
A uniformly doped n-type silicon bar doped ND =1016/cm3 of length L is illuminated to create1011/cm3 excess electron-hole pairs at x=0.The illumination wavelength does not allow the light to penetrateinto the interior (x>0) of the bar.
a two control inputs - two controlled outputs plant is described by the state - space
Instrumentation amplifiers are indeed constructed with either 2 Op Amps or 3 Op Amps. Does that mean that the 3 Op Amp is more common
A chemical plant needs a microprocessor-driven alarm system to warnof critical conditions in one of its chemical tanks. Thethank has four HIGH/LOW (1/0) switches that monitor temperature(T), pressure (P), fluid (F), and weight (W).
Three incandescent lamps rated 60 W, 120 V are connected is delta. What line voltage is needed so that the lamps burn normally
Using a 4-bit synchronous counter and an AND gate, construct a counter that counts from 0000 through 1010. Repeat for a count from 0000 through 1110. Minimize the number of inputs to the AND gate.
State the different groupings (accounts) in the balance of payments account. Why must the balance of payments account always balance?
A certain 15 V dry-cell battery, completely discharged, requires a current of 100 mA for 3 hr to completely recharge. What is the energy storage capacity of the battery, assuming the voltage does not depend on its charge status
Assume both antennas are ideal.
Provide sufficient theoretical and quantitative justification on the 'liq-3 choice. Try to optimize Vuon a per-stage basis to achieve the lowest power.
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