The dimensional formula $[ML^0T^{-3}]$ is more closely associated with

Which of the following quantities has the same dimensions as that of energy?

If mass $(M)$,length $(L)$,time $(T)$,and electric current $(A)$ are taken as fundamental quantities,then the dimensional formula of permittivity $(\epsilon_0)$ is:

Dimensions of $\varepsilon_0$ are

Turpentine oil is flowing through a tube of length $l$ and radius $r$. The pressure difference between the two ends of the tube is $P$. The viscosity of oil is given by $\eta = \frac{P(r^2 - x^2)}{4vl}$,where $v$ is the velocity of oil at a distance $x$ from the axis of the tube. The dimensions of $\eta$ are

Which of the following pairs has the same dimensions?