Solved papers for JEE Main & Advanced JEE Main Paper (Held On 11 April 2015)

done JEE Main Paper (Held On 11 April 2015) Total Questions - 1

• question_answer1) A short bar magnet is placed in the magnetic meridian of the earth with north pole pointing north. Neutral points are found at a distance of 30 cm from the magnet on the East - West line, drawn through the middle point of the magnet. The magnetic moment of the magnet in \[A{{m}^{2}}\]is close to : (Given \[\frac{{{\mu }_{0}}}{4\pi }={{10}^{-7}}\] in SI units and \[{{B}_{H}}=\]Horizontal component of earth's magnetic field \[=3.6\times {{10}^{-}}^{5}\] Tesla.) [JEE Main Online Paper (Held On 11 April 2015)]  
  A)
   9.7
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  B)
   4.9
  done clear
  C)
   19.4
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  D)
   14.6
  done clear
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