Solved papers for JEE Main & Advanced AIEEE Solved Paper-2007

done AIEEE Solved Paper-2007 Total Questions - 5

• question_answer1) A long straight wire of radius a carries a steady current i. The current is uniformly distributed across its cross-section. The ratio of the magnetic field at\[2a/\sqrt{3}\]and\[2a\sqrt{3}\]is       AIEEE  Solved  Paper-2007
  A)
   \[a/\sqrt{3}\]                                   
  done clear
  B)
   4            
  done clear
  C)
          1            
  done clear
  D)
          \[a\sqrt{3}\]
  done clear
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• question_answer2) A current\[^{20}{{C}_{0}}{{-}^{20}}{{C}_{1}}{{+}^{20}}{{C}_{2}}{{-}^{20}}{{C}_{3}}+....{{+}^{20}}{{C}_{10}}\]flows along the length of an infinitely long, straight, thin walled pipe. Then,       AIEEE  Solved  Paper-2007
  A)
   The magnetic field is zero only on the axis of the pipe
  done clear
  B)
   The magnetic field is different at different points inside the pipe
  done clear
  C)
   The magnetic field at any point inside the pipe is zero
  done clear
  D)
   The magnetic field at all points inside the pipe is the same, but not zero
  done clear
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• question_answer3) A charged particle with charge g enters a region of constant, uniform and mutually orthogonal fields \[\vec{E}\] and \[\vec{B}\] with a velocity v perpendicular to both \[\vec{E}\] and \[\vec{B}\] and comes out without any change in magnitude or direction of v. Then,       AIEEE  Solved  Paper-2007
  A)
   \[\vec{v}=\vec{E}\times \vec{B}/{{B}^{2}}\]
  done clear
  B)
   \[\vec{v}=\vec{B}\times \vec{E}/{{B}^{2}}\]
  done clear
  C)
   \[\vec{v}=\vec{E}\times \vec{B}/{{E}^{2}}\]    
  done clear
  D)
          \[\vec{v}=\vec{B}\times \vec{E}/{{E}^{2}}\]
  done clear
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• question_answer4) A charged particle moves through a magnetic field perpendicular to its direction. Then,       AIEEE  Solved  Paper-2007
  A)
   the momentum changes but the kinetic energy is constant
  done clear
  B)
   both momentum and kinetic energy of the particle are not constant
  done clear
  C)
   both momentum and kinetic energy of the particle are constant
  done clear
  D)
   kinetic energy changes but the momentum is constant
  done clear
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• question_answer5) Two identical conducting wires AOB and COD are placed at right angles to each other. The wire AOB carries an electric current\[f(x)\]and COD carries a current\[x=0\]. The magnetic field on a point lying at a distance d from O, in a direction perpendicular to the plane of the wires AOB and COD, will be given by       AIEEE  Solved  Paper-2007
  A)
   \[\frac{{{\mu }_{0}}}{2\pi }\,{{\left( \frac{({{l}_{1}}+{{l}_{2}})}{d} \right)}^{1/2}}\]
  done clear
  B)
          \[\frac{{{\mu }_{0}}}{2\pi d}\,{{(l_{1}^{2}+l_{2}^{2})}^{1/2}}\]
  done clear
  C)
                          \[\frac{{{\mu }_{0}}}{2\pi d}\,(l_{1}^{{}}+l_{2}^{{}})\]
  done clear
  D)
                          \[\frac{{{\mu }_{0}}}{2\pi d}\,(l_{1}^{2}+l_{2}^{2})\]
  done clear
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