What is ρ × g?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
ρ × g represents pressure gradient per unit height in fluids:
- ρ (rho) = fluid density (kg/m³)
- g = gravitational acceleration (9.8 m/s²)
- ρg = weight density (N/m³)
Used in pressure formulas: P = ρgh (hydrostatic pressure at depth h).
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