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Q. A single-phase, 3-kVA, 220:110-V, 60-Hz transformer has a high-voltage winding resistance of 0.3 , a low-voltage winding resistance of 0.06 , a leakage reactance of 0.8 on its high voltage side, and a leakage reactance of 0.2 on its low-voltage side. The core loss at rated voltage is 45 W, and the copper loss at rated load is 100W. Neglect the exciting current of the transformer. Find the per-unit voltage regulation when the transformer is supplying full load at 110 V and 0.9 lagging power factor.
Q. Show Noise and Stability of operational amplifier? Noise This refers to the small, rapidly varying, random spurious signals generated by all electronic circuits. Noise
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Low Pressure Gas Hazards : Safety screens and wire-mesh guards should be placed round evacuated glassware and safety goggles or a face shield must be worn against the possibility
Q. Show the procedure of Binary Addition? Rules of Binary Addition 0 + 0 = 0 0 + 1 = 1 1 + 0 = 1 1 + 1 = 0 , and carry 1 to the next more importan
The rotor of a wound-rotor induction motor is rewound with twice the number of its original turns,with a cross-sectional area of the conductor in each turn of one-half the original
Q. Can you give some Overview of Decimal Number System? The Decimal Number System uses base 10 and It includes the digits from 0 through 9. The weighted values for each positio
Q. Briefly discuss about ‘Cascaded Amplifier' using a diagram? Amplifiers are cascaded when the output of the first is the input to the second. The combined gain is whe
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Q. The response y(t) of a linear system to a unit-step excitation is y(t) = (4 - 10e -t + 8e -2t )u(t). (a) Find the system function. (b) Find the frequency at which the fo
what is difference between scot and delta connection.
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