Question

The dimensional formula of magnetic flux is

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

Answer 1

Answer: (B)

Magnetic flux, $\varphi =B.A=\frac{F}{I\lambda }A$
$=\frac{\left[M^1{L}^{+1}{T}^{-2}\right]L^2}{\left[A.L\right]}=\left[M^1{L}^2{T}^{-2}{A}^{-1}\right]$