Dimensional formula of magnetic field is :-

Options

A. `[ML^(-2)A^(-1)]`
B. `[ML^(2)T^(-1)A^(-2)]`
C. `[MT^(-2)A^(-2)]`
D. `[MT^(-1)A^(-2)]`

Answer

A

Explanation

As, magnetic field
`=("force")/("charge"xx"velocity")(becauseF=q" "vB)`
`=([MLT^(-2)])/([AT][LT^(-1)])=[MA^(-1)T^(-2)]`