Question

What is Pascal's law? Explain with an example.​

Answer 1

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What is Pascal's law?

According to Pascal’s law,

Pascal's law says that pressure applied to an enclosed fluid (inside a container) will be transmitted to every point of the fluid and to the walls of the container.

• The law that an external pressure applied to a fluid in a closed vessel is uniformly transmitted throughout the fluid.

Pascal Law Formula:-

Following is the formula of Pascal law:-

• F = PA

Where,

• F is the force applied
• P is the pressure transmitted
• A is the cross-sectional area.

Example of Pascal’s Law:-

Let us understand the working principle of Pascal’s law with an example.

• A pressure of 2000 Pa is transmitted throughout a liquid column due to a force being applied on a piston. If the piston has an area of 0.1 m2, what is the force applied?

This can be calculated using Pascal’s Law formula.

• F = PA

Here,

• P = 2000 Pa = N/m2

• A = 0.1 m²

Substituting values, we arrive at F = 200 N

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