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Does a dimensionless quantity have a unit?
No, a dimensionless quantity does not have a unit because it represents a pure number without any physical dimension. Examples of dimensionless quantities include ratios, proportions, and mathematical constants.
Can a quantity have unit and still be diamensionless?
No, a quantity cannot have units and still be dimensionless. The dimensions of a quantity are determined by its units, so if a quantity has units, it has dimensions. Dimensionless quantities are those without any units.
What is the unit for energy efficiency?
Efficiency is a dimensionless quantity, i.e. it's just a number, without any unit.
Is specific weight is a dimensionless quantity?
energy/mass example: calories/gram
Can a quantity have units but still be dimensionless?
No. "Dimensionless" means there are NO units involved.
Unit of relative permeability?
Relative permeability does not have a unit as it is a dimensionless quantity that describes how easily a fluid can flow through a porous medium (such as a rock or soil) relative to the fluid's flow in a vacuum. It is typically represented as a dimensionless ratio ranging from 0 to 1.
What is the unit for the dielectric constant of a medium?
The unit for the dielectric constant of a medium is a dimensionless quantity as it represents the ratio of the permittivity of the medium to the permittivity of a vacuum.
What are dimensionless numbers?
the dimensionless numbers have the definition as that of dimensionless groups, and have all the properties which dimensionless groups have.
What is the rule of dimensionless quantity?
infinity
Which of the following is dimensionless quantity a. stress b. strain c. momentum d. force?
Strain is dimensionless quantity because strain is the ratio of the same quantities like change in length/original length,,change in volume/original volume. e.g tensile strain=(change in length)/(original length)=m/m (S.I unit) so its a dimensionless quantity.
Why angle has a unit in spite it is dimensionless?
Angles are not dimensionless.
Can a quantity have constant value and be dimensionless?
Yes. Conversion factors will generally be dimensionless constants.
