Question

Explain how a manometer works

Answer 1

Answer:

A manometer is a device that measures air pressure using a container with a "U"-shaped tube open at one or both ends. ... The height of the fluid on the open side will be higher on that side when air pressure is less than the gas pressure and lower on the open side when the air pressure exceeds the gas pressure.

or

In its simplest form the manometer is a U-tube about half filled with liquid. ... When positive pressure is applied to one leg, the liquid is forced down in that leg and up in the other. The difference in height, "h," which is the sum ofthe readings above and below zero, indicates the pressure.

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