Question

The dimensional formula of magnetic flux is :

• A. $\left[M{L}^2{T}^{-1}{A}^3\right]$
• B. $\left[M^0{L}^{-2}{T}^{-2}{A}^{-2}\right]$
• C. $\left[M{L}^0{T}^{-2}{A}^{-2}\right]$
• D. $\left[M{L}^2{T}^{-2}{A}^{-1}\right]$

Answer 1

Answer: (D)

Magnetic flux $=$ magnetic field $\times$ area
Dimensions of magnetic flux $=\frac{F}{il}\times l_2$
$=\frac{\left[ML{T}^{-2}\right]}{[L][A]}\times L^2{\varphi }_B$
$=\left[M{L}^2{T}^{-2}{A}^{-1}\right]$