Question

The dimensional formula for electric flux is

• A. $\left[M{L}^3{I}^{-1}{T}^{-3}\right]$
• B. $\left[M^2{L}^2{I}^{-1}{T}^{-2}\right]$
• C. $\left[M{L}^3{I}^1{T}^{-3}\right]$
• D. $\left[M{L}^{-3}{I}^{-1}{T}^{-3}\right]$

Answer 1

Answer: (A)

As electric flux is given by
${\varphi }_E=Eds=\frac{F}{q}ds$
$\therefore$ Dimensions of $\varphi =\left[\frac{ML{T}^{-2}}{IT}\right]\left[L^2\right]$
$=\left[M{L}^3{I}^{-1}{T}^{-3}\right]$