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Q. The efficiency of a 400-kVA, single-phase, 60-Hz transformer is 98.77% when delivering full-load current at 0.8 power factor, and 99.13%with half rated current at unity power factor. Calculate:
(a) The iron loss.
(b) The full-load copper loss.
(c) The efficiency at 3/4 load, 0.9 power factor
Write a program implementing the conjugate gradient method (un-preconditioned). Solve the matrix equation corresponding to a finite difference node-spacing, h = 0.02m in x and y di
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
what is the digital logic circuit for binary divider?
Common emitter configuration: even in common emitter configuration current relation is like is same like common bias configuration. For common emitter configuration output cha
Q. What do you mean by Oscilloscope? To measure time-varying signals (voltages and currents), an instrument known as an oscilloscope is employed. It can be used as a practical
P-N Junction A p-n junction is made by joining P-type and N-type semiconductors together in extremely close contact. The word junction consider to the boundary interface
Effect of Frequency a.From equation for given H p and μ P v α √f b.From equation the depth of penetration for a given material δ α 1/ √f c.From equation hyst
Merits and demerits of? AC and DC onboard ship
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Direct and Indirect Semiconductors 1) In a common quantitative calculation of band structures, the wave function of a single electron traveling by a perfectly periodic lattice
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