If $R$ and $L$ represent respectively resistance and self inductance, which of the following combinations has the dimensions of frequency
$\frac{R}{L}$
$\frac{L}{R}$
$\sqrt {\frac{R}{L}} $
$\sqrt {\frac{L}{R}} $
The amount of heat energy $Q$, used to heat up a substance depends on its mass $m$, its specific heat capacity $(s)$ and the change in temperature $\Delta T$ of the substance. Using dimensional method, find the expression for $s$ is (Given that $\left.[s]=\left[ L ^2 T ^{-2} K ^{-1}\right]\right)$ is
If force $F$ , velocity $V$ and time $T$ are taken as fundamental units then dimension of force in the pressure is
If energy $(E)$, velocity $(v)$and force $(F)$ be taken as fundamental quantity, then what are the dimensions of mass
Dimensional formula for thermal conductivity is (here $K$ denotes the temperature)
Dimensional formula of magnetic flux is