The dimension of $P = \frac{{{B^2}{l^2}}}{m}$ is 
where $B=$ magnetic field, $l=$ length, $m =$ mass

  • A
    $ML{T^{ - 3}}$
  • B
    $M{L^2}{T^{ - 4}}I^{-2}$
  • C
    ${M^2}{L^2}{T^{ - 4}}I$
  • D
    $ML{T^{ - 2}}{I^{ - 2}}$

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