Dimensional formula of magnetic flux is .......

Options

A. `M^1 L^2 T^(-2) A^(-1)`
B. `M^1 L^0 T^(-2) A^(-2)`
C. `M^0 L^(-2) T^(-2) A^3`
D. `M^1 L^2 T^(-2) A^3`

Answer

A

Explanation

`phi=AB` and `B=F/(Il)`
`therefore [phi]=[A][B]=[A][F/(Il)]`
`=[L^2]xx(M^1L^1T^(-2))/(A^1L^1)`
`=M^1 L^2 T^(-2) A^(-1)`