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Does the height of the mercury column decrease if the diameter of the tube increases in a barometer?
Wiki User
∙ 12y ago
The height of the Mercury column is not affected by the diameter of the tube.
Here is the proof:
Pressure is force per unit area; P =F/A. Force, F = mass (m) x gravity acceleration (g), and mass = density( d) x volume (V)
Therefore, P = (d x V x g) / A. Since volume (V) = Area (A) x height (h), then
P = (d x A x h x g) / A, which upon cancelling A from numerator and denominator gives P = d x h x g. This shows that diameter of the tube has no effect on height of mercury inside the barometer tube.
Wiki User
∙ 12y ago
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When climbing a mountain with a barometer will the mercury level decrease or increase?
decrease
A decrease in the height of a column in a mercury barometer means that?
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What does a decrease in the height of the mercury column usually indicate on a barometer?
low pressure system and stormy weather
What are the Precautions for aneroid and mercury barometer?
Mercury barometer precaution
Torricelli invented a device for measuring air pressure called a(n)?
To measure the local pressure of the Earth's atmosphere, Torricelli invented the first Mercury Barometer.
A decrease in the height of a column in a mercury barometer means that .'s surface?
When air pressure increases, the mercury in a barometer rises.
When air pressure increases the liquid in a mercury barometer would what?
The height of the Mercury column would decrease.
When climbing a mountain with a barometer will the mercury level decrease or increase?
decrease
As air pressure increases does the height of a column of mercury in a barometer increase?
Yes, as air pressure increases, the height of the column of mercury in a barometer also increases. This is because the higher air pressure pushes down on the mercury in the barometer, causing the column to rise. Conversely, lower air pressure will cause the column of mercury to fall.
When air pressuer increases what does the mercury in the barometer do?
Air is "pushed" into the open end of a barometer when the pressure is higher, meaning the mercury closer to the closed end of the barometer - where the pressure is measured - will rise.
A decrease in the height of a column in a mercury barometer means that .?
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A decrease in height of a column in a mercury barometer means that?
sadcvbnl,bhvcgccvvxfxch,gvg
What does a decrease in the height of a column in a mercury barometer mean?
air pressure is decreasing
A decrease in the height of a column in a mercury barometer means that?
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Mercury barometer means you will have what kind of day?
A mercury barometer is an instrument which can be used to forecast the weather. The fact that there is a barometer does not affect the weather. You need to see what the barometer shows and interpret it.
What is a barometer with Mercury called?
A mercury barometer.
What does a decrease in the height of the mercury column usually indicate on a barometer?
low pressure system and stormy weather
