Question

The dimensional formula of electric intensity is

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

Answer 1

Answer: (C)

Since $E=\frac{E}{q}$,
$\left[E\right]=\frac{\left[M^1{L}^1{T}^{-2}\right]}{\left[AT\right]}$
$=\left[M^1{L}^1{T}^{-3}{A}^{-1}\right]$