For the manometer set up shown in the figure, the pressure difference – McqOptions

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1.	For the manometer set up shown in the figure, the pressure difference PA – PB is given by_________________?
A.	(ρH – ρair)gH
B.	(ρH – ρL)gH
C.	(ρH – ρL) gH + (ρL – ρair) . g(L – H)
D.	(ρH – ρL) gL + (ρL – ρair)gH
Answer» B. (ρH – ρL)gH

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