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