Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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Question

In the system illustrated below, manometer A reports a vacuum (negative pressure) of 0.30 kgf/cm2 and manometer B reports a pressure of 7.4 psi.
Find the value of the difference in level h in cm

A AIR B WATER Hg ㅂ
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Transcribed Image Text:A AIR B WATER Hg ㅂ
Expert Solution
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Step 1: Write the given data.

table row cell Pressure space of space air comma space straight P subscript straight A end cell equals cell negative 0.30 space kgf divided by cm squared end cell row blank equals cell open parentheses negative 0.30 space kgf divided by cm squared close parentheses open parentheses fraction numerator 98066.5 space Pa over denominator 1 space kgf divided by cm squared end fraction close parentheses end cell row blank equals cell negative 29419.95 space Pa end cell row cell Pressure space of space water comma space straight P subscript straight B end cell equals cell 7.4 space psi end cell row blank equals cell open parentheses 7.4 space psi close parentheses open parentheses fraction numerator 6894.76 space Pa over denominator 1 space psi end fraction close parentheses end cell row blank equals cell 51021.22 space Pa end cell end table

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