Answer / rvg.msceb

vacuum means the absence of pressure. due to good specific
gravity of mercury and its high rate of thermal expansion
that is fairly constant over a wide temperature range,
makes useful for measuring pressure even if vacuum.

Answer / j.santosh ramana kumar

due to low surface density

why transformer rating in kva?

7 Answers  

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3 Answers   Consultancy, JM Huber, Torrent Power,

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