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Q. On a per-phase basis, let v = √2 V cos ωt and i = √2 I cos (ωt - θ).
(a) Express the instantaneous power s(t) in terms of real power P and reactive power Q.
(b) Now consider the energy E associated with the instantaneous power and show that E = Pt, where t is the duration of the time interval in seconds.
Q. Explain working of Single-Phase Induction Motors? For reasons of simplicity and cost, a single-phase power supply is universally preferred for fractional-horsepower motors.
What is segmentation? Segment memory addressing divides the memory in several segments. All of these segments can be seen as a linear memory space. All of these segments are ad
Specific orientation programme: at this stage, induction is conducted by the foreman. Induction is specific and requires skill on the part of the foreman. A new employee must be p
what is capacitance
Q. Illustrate Output-rate control? A system is said to have output-rate damping when the generation of the output quantity in some way ismade to depend upon the rate atwhich th
Explain the Power Transmission Lines Transmission and distribution of electric power is accomplished by using overhead lines or underground cables. Overhead lines are normally
Limitations: 1. Silicon transistors do not function at voltages much higher than about 1,000 volts (SiC devices can be worked as high as 3,000 volts). In difference, electron
Alow-noise transducer is connected to an instrumentation system by a cable that generates thermal noise at room temperature. The information-bearing signal has a bandwidth of 6 kHz
Q. On a CD amplifier R s = 4k?, µ =50 and r =35k?. Evaluate the voltage gain A v . A v = V o /V i = µRs / (µ+1)Rs + r
Simulate and compare BER of QPSK system and 4-QAM system without grey coding Eb/No=0.2.4.6.8.10
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