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Capillary rise
h = 2T cos θ / (rρg)
Where: T = time period (s) / temperature (K) / tension (N), g = acceleration due to gravity (m/s²), h = height (m) / Planck constant, r = radius / distance (m), ρ = density (kg/m³) / resistivity, θ = angle
Solved example
Given: T = 7, g = 5, r = 10, rho = 4, theta = 30°
Find: h (height (m) / Planck constant)
- Formula: h = 2·T·cos(θ)/(g·r·ρ)
- Substitute the values: h = 2·7·cos(30°)/(10·4·5)
- Result: h = 0.060622 m
Answer: h = 0.060622 m
Calculator
How to calculate Capillary rise
- Write down the formula: h = 2T cos θ / (rρg).
- Note the known values (T, g, r, ρ, θ).
- Substitute them and simplify to find h.
- Use the calculator above to solve for any letter.
Frequently asked questions
What is the formula for Capillary rise?
The formula is h = 2T cos θ / (rρg), where T = time period (s) / temperature (K) / tension (N), g = acceleration due to gravity (m/s²), h = height (m) / Planck constant, r = radius / distance (m), ρ = density (kg/m³) / resistivity, θ = angle.
What is Capillary rise when T = 7, g = 5, r = 10, rho = 4, theta = 30°?
h = 0.060622 m. Substitute the values into h = 2T cos θ / (rρg) and simplify.