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A 260/130V, 26kVA single phase transformer has full load unity power factor efficiency of 94%. It is connected as an auto transformer to feed a load at 390V with input voltage of 260V. The full load efficiency of auto transformer at unity power factor will be _________ %.
The feedback capacitor is across the second stage, which has a gain of -103. The effective resistance at the input of the second stage is Req = 1.2 M. What is the value of the feedback capacitor?
Determine the coefficients of the FIR filter that has 0.5 dB ripple in the passband and 50 dB attenuation in the stopband. Choose reasonable values for the band-edge frequencies.
Adding dopants to a sample of silicon is found to reduce the Hall coefficient by a factor of 10 and increase the conductivity by a factor of 5. What effect has this dopant addition had on the mean free path
The receiver has a noise bandwidth of 1 MHz, an effective input-noise temperature of 800 K, and a gain of 120 dB from its antenna input to its IF output.
An ideal reheat Rankine cycle operates between the pressure limits of 10 kPa and 8 MPa, with reheat occurring at 4 MPa. The temperature of steam at the inlets of both turbines is 500°C, and the enthalpy of steam is 3185 kJ/kg at the exit
Design a datapath which inputs three 3-bit unsigned numbers x,y, and z. If z is the binary representation for 3 or 7, output x + y. If z is the binary representation of 4 or 6, output x + z. If z is anything else, output y + z.
Blem 3.6 solution Problem 3. The figure below shows the field coil of an electric machine. It is excited by closing switch S1 onto an 800V d.c. bus. Determine the energy stored in the coil, and the energy dissipated in the coil resistance, 1 s..
The command in AutoCAD can be a time-saver, particularly when you're working in an application where you want to move a door or windows within walls on a drawing and don't want to redraw the walls.
Similar to the case study presented in the chapter, try to perform a sectorial energy and exergy analysis of a country or geopolitical region.
Find the Thévenin equivalent circuit for the network external to the resistor R of given figure. - Find the current through R when R is 2Ω, 30Ω, and 100Ω.
Such a counter can be designed by generating a single carry-lookahead signal for each counter stage from the output of the previous stage. Derive the design equation for a 4-bit binary counter with carry-lookahead.
Identify three types of electrical or electronic components currently used in business or industry today that use voltage regulators in their operation. Discuss some of the problems that can be experienced if the input voltage to the electroni..
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