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Q. A dc series motor operates at 750 r/min with a line current of 100 A from the 250-V mains. Its armature-circuit resistance is 0.15 and itsseries-field resistance is 0.1 . Assuming that the flux corresponding to a current of 25 A is 40% of that corresponding to a current of 100 A,determine the motor speed at a line current of 25 A at 250V.
Q. Athree-phase, 60-Hz transmission line has a total series impedance of 22.86 62.3° per phase. It delivers 2.5 MW at 13.8 kV to a load connected to its receiving end. Compute th
what is equalizer ring
Q. Find the output function Y for the logic circuits of Figure (a) and (b). An AOI (AND-OR-INVERT) gate is shown in Figure with its two possible realizations. Obtain the output
A 9.1V zener diode has a nominal voltage fall at a test current of 28mA. The internal resistance of the zener diode is 5 ohms. Find the voltage drop across the zener diode at zener
Explain the working principle, Surface finish, material removal, accuracy,advantages and application of Electrochemical Grinding(ECG). (a) In electro chemical machining of pure
Q. Explain Steady-State Error of Linear Systems? If the steady-state response of the output does not agree exactly with the steady state of the input, the system is said to hav
Question : (a) List the six basic quantities and units as used in the SI systems of units and give their respective symbols (b) A flux density in the CGS system is expressed
Technical Loss in Electrical Systems Technical loss is inherent in electrical systems, as all electrical devices have a few resistances and the flow of currents causes a power
Q. Implement the following Boolean functions by employing 8-to-1multiplexers. (a) F 1 (A,B,C) = Σ m i (0, 2, 4, 6) (b) F 2 (A,B,C) = Σ m i (1, 3, 7)
We can illustrate the direction and strength of a magnetic field by means of drawing 'flux lines'. These have arrows to show the direction of the magnetic field at any point and th
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