# Application of liquid pressure in daily life

The hydraulic lift is an example of the liquid pressure.

A hydraulic lift is used to lift the heavy loads.

If a small force f is applied on the piston of C then the pressure exerted on the liquid

$P=\frac{f}{a}$

Where

a = Area of a cross-section of the piston in C

This pressure is transmitted equally to the piston of cylinder D.

So $\frac{f}{a}= \frac{F}{A}\Rightarrow F= \frac{f}{a}A$

Where F=Upward force acting on the piston of cylinder D.

A=Area of a cross-section of the piston in D

Condition of Hydraulic Lift-

$A> > a\: \: therefore$

$F> > f$

So heavy load placed on the larger Piston is easily lifted upward.

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