Exp-1 To determine the surface tension of water by ring-pull out method.
Principle and Working:
Surface tension for water is determined using ring-pull out method. The experiment utilizes a force sensor on which a metal ring is suspended, which can be lowered or pulled out of water.
In the present setup, a metal ring is completely immersed in the liquid, so that the entire surface is wetted. The ring is than slowly pulled out of the liquid, drawing a thin sheet of liquid behind it. The liquid sheet tears when the tensile force exceeds a limit value,
where R denotes edge radius and σ surface tension of liquid.
A force sensor is used with computer interface to determine the tensile force in SK047 kit.
|Cat. No.||Item Name||SK046||SK047|
|SG101||‘A’ shaped base, small||1||1|
|Data Logging Interface||1|
* Additionally Required
Computer not supplied with this setup.