The magnetic field existing in a region is given by $\vec B\, = \,{B_0}\,\left( {5 + \frac{x}{l}} \right)\,\hat K$ A square loop of edge $l$ and carrying a current $i$ is placed with its edges parallel to $x-y$ axes. Find the magnitude of the net magnetic force experienced by the loop
  • A$5\,{B_0}\,il$
  • B$6\,{B_0}\,il$
  • C${B_0}\,il$
  • D
    Zero
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