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A single-phase 50 Hz transformer has a voltage ratio of 230/2300 V. A capacitor rated 30 kVAR is connected on the 2300 V side. Calculate the value of this capacitor. What is the kVAR of the capacitor and the value of its capacitance as seen on 230-V side. Assume the transformer to be ideal.
Draw the circuit diagram of a 4-bit binary adder-subtractor using a 4-bit binary adder and XOR gates. Treat the adder asa block component with appropriate inputs and outputs. you doNOT need to show the internal gates of the adder.
While the researchers hypothesized that the use of a rocking chair could reduce POI duration, it is not unreasonable to hypothesize that the use of a rocking chair could increase POI duration. Based on this possibility, discuss the appropriateness..
A linear machine has a magnetic flux density of 0.5 T directed into the page, a resistance of 0.25 W, a bar length l = 1.0 m, and a battery voltage of 100 V.
The O.C and S.C test data are given below for a single phase, 5 kVA, 200V/400V, 50Hz transformer. O.C test from LV side:200V 1.25A 150WS.C test from HV side:20VV 12.5A 175W
A 1900x10^(-6)F capacitor, intially cahrged to 120V, is discharged by a steady state of 120x10^(-6)A how long does it take to discharge the capacitor to 0V
Compute the homogeneous solution yh(t). Compute the particular solution yp(t).
Suppose that the machining operation requires 1 kW, that the tool machine ihas 90 percent efficiency, and that the supply current is 14 A rms with a power factor of 0.8. Find the AC machine efficiency.
The D-Latch is constructed with four NAND-gates and an inverter. Consider the following three other ways for obtaining aD-Latch, and in each case draw the logic diagram and verify the circuit operation
If an object is located at 0.5 times the focal length of a thin lens, calculate the location and lateral magnification of the image. Assume that both sides of the lens are filled with air, that the index of refraction of the lens is n=1.5
what is the required sampling frequency if there is to be a guard band of 2.5 kHz?
A variable-speed motor having a nameplate rating of 15 hp, 890 r/min develops a torque of 25 newton meters at 1260 r/min. Calculate the per-unit values of the torque, speed, and power.
Using your technique develop a performance comparison for (511,385) and (1023,768) BCH codes. Assume FSK modulation with coherent demodulation.
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