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A generating station has a maximum demand of 50,000 kW. Calculate the cost per unit generated from the following data :
•Capital cost = Rs 95 x 106; Annual load factor = 40%
•Annual cost of fuel and oil = Rs 9 x 106; Taxes, wages and salaries etc. = Rs 7.5 x 106
•Interest and depreciation = 12%.
A step-down transformer has a 120V rms primary voltage applied and a 12V rms voltage is measured at thesecondary. Assuming the transformer can be considered ideal,determine the turns ratio, n.
An LVDT is used in an accelerometer to measure seismic-mass displacement. The LvDT and signal-conditioning output is 0.31 mV/mm with a +/-2 cm maximum core displacement. The spring constant is 240 N/m, and the core mass is 0.05 kg.
A 230V, 25hp, shunt DC motor draws an armature current of 90Aat full rated load. The armature resistance is 0.2 ohms and theshunt field resistance is 216 ohms. Determine the rotational lossesand motor efficiency at full load.
Design a sequence detector which produces an output 1 everytime the sequence 0101 is detected and output 0 at all other times use any flip flop.
Show a diagram of how a FET can be biased? Explain how to calculate the DC parameters, such as, Id (Id = Is), Vgs and Vds.
a) What is the key difference between coherent and non-coherent demodulation b) Explain the concept of differential encoding for BPSK modulation.
A R-C high-pass filter contains a 1 µF capacitor and a 1k resistor. Suppose a single "square" voltage pulse of 5 V for 1 ms duration is applied to the input. Carefully and neatly sketch the resulting output, including numeric values, of output volt..
The graph below shows a RHEED pattern during MBE for a structure that consists of the deposition of a layer of GaAs, followed by AlxGa1-xAs, followed by AlAs. What is the thickness of the AlAs and the GaAs layers ( in "monolayers")? What is the al..
The circuit will have as inputs a minimum of two inputs; the binary equivalent of two decimal numbers of not greater than (10,000)10. The circuit will also produce a minimum of two outputs, the quotient and the remainder.
Derive the relation between the liquid and gas concentration at any level in the tower, as at point P.- and prove the equation below;
Consider the transconductance amplifier shown in given Figure.- Derive the expression for the transconductance function Ag f = Io/Vi.
An ideal transformer has five times more turns on the primary than the secondary. A0.1-H inductor and a 0.1uf capacitor are connedted in parallel across the secondary of the transformer.
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