# Pascal's law and the variation of hydrostatic pressure

In the case of the hydraulic lift (pictured) according to the pascals law we say that the pressure on $$A_1$$ is the same as $$A_2$$. In here do we assume that the $$d_1$$ value involved is so small that the pressure variation has no effect? • What do you mean by pressure variation? May 8, 2020 at 7:44
• @DDD4C4U I meant the variation of pressure with depth. May 8, 2020 at 8:31

Therefore, the absolute pressure $$P$$ is different in different parts of the fluid, but the increase in pressure $$\Delta P$$ is the same throughout the fluid.
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