The pressure difference between an oil pipe and water pipe is measured by a double–fluid manometer, as shown in Fig. P3–51. For the given fluid heights and specific gravities, calculate the pressure difference ΔP = PB– PA.
Step 1<img src="https://lh3.googleusercontent.com/7Dzp9WTKwpevL1R1rWaGZH6pBlCTy71mcK8TJM5Q4N4AfzucFkjWmqSnAYN_KMOJo5V9gPBNdTmb563YqherSdLnfrTmGv6pl63x-NGuFYKGkuQjbGP1Ed8z0R4QPrfcRRbNxtN6">
We have to find the pressure difference between an oil pipe and water i.e
Pressure is defined as the force across a unit area.
The variation of pressure with height is