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Amongst which of the following is a key advantage of using a differential manometer over a simple manometer?

13. Amongst which of the following is a key advantage of using a differential manometer over a simple manometer?

1. It can measure pressure in liquids as well as gases.
2. It is less expensive.
3. It can measure smaller pressure differences more accurately.
4. It does not require a liquid in the U-tube.

Answer: C) It can measure smaller pressure differences more accurately

Explanation:

The main advantage of using a differential manometer is its ability to measure smaller pressure differences between two points in a fluid with higher accuracy compared to a simple manometer.