The dimensional formula for magnetic flux is

Options

A. `["ML"^(2)"T"^(-2)"A"^(-1)]`
B. `["ML"^(2)"T"^(-3)"A"^(-1)]`
C. `["M"^(-1)"L"^(-2)"T"^(2)"A"]`
D. `["ML"^(3)"T"^(-2)"A"^(-1)]`

Answer

A

Explanation

Dimensions of `phi_(B)` = Unit of B `xx` Unit of `A`
`" "=("newton")/("ameper - metre")xx"metre"^(2)`
`" "=("newton"xx"metre")/("ameper")`
`" "("kg ""ms"^(-2)xx"m")/(A)="kgm"^(2)s^(-2)A^(-1)=["ML"^(2)"T"^(-2)"A"^(-1)]`