Which of the following is not a dimensionless | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) Relative magnetic permeability $(\mu_{r} = \mu / \mu_{0})$ is the ratio of two similar quantities,so it is dimensionless.Power factor $(\cos \phi)

Vedclass · Accepted Answer

Permeability of free space $(\mu_{0})$

Vedclass · Answer

(C) Relative magnetic permeability $(\mu_{r} = \mu / \mu_{0})$ is the ratio of two similar quantities,so it is dimensionless.Power factor $(\cos \phi)$ is the ratio of resistance to impedance,so it is dimensionless.Permeability of free space $(\mu_{0})$ has the $SI$ unit of $N A^{-2}$ or $T m A^{-1}$. Its dimensional formula is $[M L T^{-2} A^{-2}]$. Therefore,it is not a dimensionless quantity.Quality factor $(Q)$ is defined as the ratio of energy stored to energy dissipated per cycle,making it dimensionless.Thus,the correct option is $C$.

Which of the following is not a dimensionless quantity?

Similar Questions

The dimensions of surface tension are

Dimensional formula for the universal gravitational constant is

Dimensions of the following three quantities are the same:

The dimensional formula for pressure head is ............

If $G$ is the gravitational constant and $u$ is the energy density,then which of the following quantities has the same dimensions as $\sqrt{uG}$?

Vedclass Test Series

Exam Paper Generator

Online Exam Module