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Q. Explain Continuous-data and discrete-data systems?
A continuous-data system is one in which the signals at various parts of the systemare all functions of the continuous-time variable t.When one refers to an ac control system, it usually means that the signals in the system aremodulated by some kind ofmodulation scheme.On the other hand, a dc control system implies that the signals are unmodulated, but they are still ac signals according to the conventional definition. Typical components of a dc control system are potentiometers, dc amplifiers, dcmotors, and dc tachometers; typical components of an ac control system are synchros, ac amplifiers, ac motors, gyroscopes, and accelerometers.
Q. Planning and Research in power system? Energy research worldwide is assuming top priority, in particular because of economic, en - vironmental, and resource constraints. DOE
Q. Frequency response of amplifiers? All amplifiers exhibit variations of performance as the signal frequency is changed. The frequency response of an amplifier may be defined
numerical problem
Change in an organisation: Change might be perceived in two ways: Change as continuous and intrinsic to an organisation and change as discontinuous & extrinsic. A force
Q. Illustrate the principles of operation of centralized SPC and distributed SPC and compare their performance. Ans: In centralized control, all control equipment is replac
Consider the 220-V, 1800-r/min dc motor, controlled by a three-phase fully controlled rectifier from a 60-Hz ac source. The armature-circuit resistance and inductance are 1.5 and
The critical temperature above which the ferromagnetic materials lose their magnetic property is known as (A) Hysteresis. (B) Curie point.
Q. explain the architecture of SS7 and compare with seven-layer OSI architecture. Ans: A block schematic diagram of CCITT no. 7 signalling system is displayed in figure. Sig
explain the application of the Si,zener,and LED diodes
A dc shunt motor runs off a constant 200-V supply. The armaturewinding resistance is 0.4, and the ?eld winding resistance is 100 . When the motor develops rated torque, it draws
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