Solved papers for JEE Main & Advanced JEE Main Solved Paper-2015

done JEE Main Solved Paper-2015 Total Questions - 2

• question_answer1) When 5V potential difference is applied across a wire of length 0.1 m, the drift speed of electrons \[2.5\times {{10}^{-4}}m{{s}^{-1}}.\]If the electron density in the wire is \[8\times {{10}^{28}}{{m}^{-3}},\]the resistivity of the material is close to [JEE Main Solved Paper-2015 ]
  A)
  \[1.6\times {{10}^{-6}}\Omega m\]        
  done clear
  B)
  \[1.6\times {{10}^{-5}}\Omega m\]
  done clear
  C)
  \[1.6\times {{10}^{-8}}\Omega m\]        
  done clear
  D)
  \[1.6\times {{10}^{-7}}\Omega m\]
  done clear
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• question_answer2) In the circuit shown, the current in the \[1\Omega \] resistor is : [JEE Main Solved Paper-2015 ]
  A)
  0.13 A, from Q to P         
  done clear
  B)
  0.13 A, from P to Q
  done clear
  C)
  1.3 A, from P to Q
  done clear
  D)
  0A
  done clear
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