Pressure

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Pressure
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Mercury
?h
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Open- ended manometer measures the gauge pressure
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Closed- ended manometer measures the absolute
pressure
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A manometer is a U-shaped tube filled with a
liquid of known density (the manometer fluid)

• When the ends of the tube are exposed to
  different pressures, the fluid level drops in the
  high pressure arm and rises in the low pressure
  arm

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Manometers
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