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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. Show Advantage of digital control system over analog system? Sampled data and digital control offer several advantages over analog systems: • More compact and lightweight
Explain SAHF instructions in 8086 family with example and their effect on flag. SAHF: Store AH register in flag register, this is an instruction utilized to store the data i
Q. A three-phase balanced load draws 100 kW at 0.8 power factor lagging. In order to improve the supply power factor to 0.95 leading, a synchronous motor drawing 50 kWis connected
Based upon the following inputs, propose the optimal course of action for this venture: Probability of success: 30%; probability of failure: 30%; base case probability: 40%
Covalent Bonding Exhibited through the diamond lattice semiconductors. Each atom enclosed by four nearest neighbors, each comprising four electrons in the outermost orbi
Q. A 345-kV, 60-Hz, three-phase transmission line delivers 600 MVA at 0.866 power factor lagging to a three-phase load connected to its receiving- end terminals. Assuming that the
Q. Transient behavior of a control system? The transient portion of the time response of a stable control system is that part which goes to zero as time increases and becomes s
if the sheet resistance of a tin oxide is 100 ohms, what is the thickness of the oxide layer?
1. The voltage across a 1 - μF capacitor is given. Which is the sinusoidal expression for the current? a) 30 sin200t b) 70cos (800t - 20°) 2. At what frequency will the re
Q. Explain working of Public Switched Telephone Network? Public Switched Telephone Network (PSTN) accommodates two kinds of subscribers: private andpublic. Subscribers to priv
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