1.

The dimensional formula for the magnetic field is

Answer»

`[MT^(-2)A^(-1)]`
`[ML^(2)T^(-1)A^(-2)]`
`[MT^(-2)A^(-2)]`
`[MT^(-1)A^(-2)]`

SOLUTION :`"Magnetic field" = ("force")/("CURRENT" xx "Length")`
`= ([MLT^(-2)])/([M][L])= [MT^(-2)A^(-1)]`


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