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What is the ratio of thermal conductivity to electrical conductivity equal to?
- a)Prandtl number
- b)Schmidt number
- c)Lorenz number
- d)Lewis number
Correct answer is option 'C'. Can you explain this answer?
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What is the ratio of thermal conductivity to electrical conductivity e...
Note:
The Prandtl number, Pr, is the ratio of the momentum diffusivity (kinematic viscosity) to the thermal diffusivity.
The Reynolds number (Re) is the ratio of inertia forces in the fluid to the viscous forces.
Schmidt and Sherwood numbers are the mass transfer coefficient.
Schmidt number (Sc): Ratio of molecular diffusivity of momentum to molecular diffusivity of mass transfer.
Sherwood number (Sh): Ratio of total mass transfer rate to mass transfer by molecular diffusion
Lewis Number represent the relative magnitudes of heat and mass diffusion in the thermal and concentration boundary layers.
Lorenz Number: Wiedemann–Franz law states that the ratio of the electrical to the thermal conductivity was a constant for several metals, at a given temperature.
Most Upvoted Answer
What is the ratio of thermal conductivity to electrical conductivity e...
Note:
The Prandtl number, Pr, is the ratio of the momentum diffusivity (kinematic viscosity) to the thermal diffusivity.
The Reynolds number (Re) is the ratio of inertia forces in the fluid to the viscous forces.
Schmidt and Sherwood numbers are the mass transfer coefficient.
Schmidt number (Sc): Ratio of molecular diffusivity of momentum to molecular diffusivity of mass transfer.
Sherwood number (Sh): Ratio of total mass transfer rate to mass transfer by molecular diffusion
Lewis Number represent the relative magnitudes of heat and mass diffusion in the thermal and concentration boundary layers.
Lorenz Number: Wiedemann–Franz law states that the ratio of the electrical to the thermal conductivity was a constant for several metals, at a given temperature.
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What is the ratio of thermal conductivity to electrical conductivity e...
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What is the ratio of thermal conductivity to electrical conductivity equal to?a)Prandtl numberb)Schmidt numberc)Lorenz numberd)Lewis numberCorrect answer is option 'C'. Can you explain this answer?
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