Physics, 18.06.2020 13:57 jesseniaindiaaoyr75n
The instrument readings obtained from open and short-circuit tests on 10kVA, 450/120V, 50Hz
transformer are:
0.C. test : V= 120V; 1= 4.2A; W= 80W; W and I were in the low-voltage side.
S. C. test : V = 9.65V; 1= 22:24; W = 120W with low voltage winding short circuited. High voltag
S
Compute:
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The equivalent constants referred to the primary.
2- Efficiency for full and half-load at 0.8 p. f.
3- Maximum efficiency.
4- The voltage regulation-up for full-load and 0.8 p. f. lagging.
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Physics, 22.06.2019 10:00, Kenemcaid6979
Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer
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Physics, 22.06.2019 17:00, cwibs
Adiver named jacques observes a bubble of air rising from the bottom of a lake (where the absolute pressure is 3.50 atm) to the surface (where the pressure is 1.00 atm). the temperature at the bottom is 4.00 ∘c, and the temperature at the surface is 23.0 ∘c. what is the ratio of the volume of the bubble as it reaches the surface (vs) to its volume at the bottom (vb)? if jaques were to hold his breath the air in his lungs would be kept at a constant temperature. would it be safe for jacques to hold his breath while ascending from the bottom of the lake to the surface?
Answers: 1
The instrument readings obtained from open and short-circuit tests on 10kVA, 450/120V, 50Hz
transfo...
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