Solved papers for JEE Main & Advanced JEE Main Solved Paper-2014

done JEE Main Solved Paper-2014 Total Questions - 1

• question_answer1) The coercivity of a small magnet where the Ferro magnet gets demagnetized is \[3\times {{10}^{3}}A\,{{m}^{-1}}.\]The currentrequired to be passed in a solenoid of length 10 cm and number of turns 100, so that the magnet getsdemagnetized when inside the solenoid, is :   JEE Main  Solved  Paper-2014
  A)
  3 A                                         
  done clear
  B)
  6 A
  done clear
  C)
  30 mA                  
  done clear
  D)
  60 mA
  done clear
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