Difference Between Dimensional & Dimensionless Physical Constants

[nishanth R]

Homework Statement

What is the difference between a dimensional physical constant and dimensionless physical constant?

Homework Equations

The Attempt at a Solution

 

[gracy]

Please fill all the templates.You will have to show some effort in order to get any help.In physics terms I would say
"The results you achieve is directly proportional to the effort you apply"

 

[andrevdh]

Maybe start out with examples of each type of constant?

 

[BvU]

What is the context of your question ? In introductory physics there are hardly any dimensionless physical constants, apart from ratios.
Are you sure you don't mean coefficients (e.g. for physical properties, friction coefficients and such) ?

If we leave out a whole lot of ratios (mostly dimensionless for obvious reasons),
when I look at a http://web.mit.edu/birge/Public/formulas/phys-const.pdf , all I see are physical constants with a dimension -- apart from a few very fancy ones such as $\alpha$ and g-2 .

 

[andrevdh]

I think they mean something like π or e

 

[BvU]

nR, what DO you mean ? I read physical constants.