Question

The dimensional formula of magnetic flux is

• A. MLT^-2A^-1
• B. ML²T^-1A^-1
• C. ML²T^-2A^-1
• D. ML²T^-2A

Answer 1

The correct option is C

ML²T^-2A^-1

$\varphi =\left[\frac{mv}{rq}\right]A$ (using the expression for the radius of the path of a charged particle in a uniform magnetic field)

Dimensionally RHS $=\frac{ML{T}^{-1}{L}^2}{LAT}$ or $\left[\varphi \right]=M{L}^2{T}^{-2}{A}^{-1}$