KARABOO
,
Saturday, 14th of August 2010 05:28:47 AM
Pls explain my question........ l know it is something to do with pascal is
KARABOO
principle but when a bigger piston is placed on the other side, how can the
Registered User
pressure still the same?
Joined: Sunday, 9th of May 2010, 07:25:50
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Kitten
,
Sunday, 15th of August 2010 08:05:15 PM
You must look more carefully at the definition of pressure.
Kitten
P = F/A (force divided by area)
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Blaise Pascal is credited with first realizing that the pressure
Joined: Monday, 19th of April 2010, 11:24:37
throughout a contained fluid would be the same anywhere within the fluid.
Posts: 549
Bigger piston: It does have the same pressure as the small one, but owing
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to the greater area, it has a larger FORCE on it. (P*A).
Pascal is law applies only when the weight of the fluid is ignored or is
small with regard to the total pressure in the fluid. Ex: A 1 m tall
container of water is pressurized to 1000KPa. If the pressure is measured
near the top of the container, the actual pressure at the bottom will be
about 1010KPa