Solved papers for JEE Main & Advanced AIEEE Solved Paper-2004

done AIEEE Solved Paper-2004 Total Questions - 4

• question_answer1) Two spherical conductors B and C having equal radii and carrying equal charges in them repel each other with a force F when kept apart at some distance. A third spherical conductor having same radius as that of B but uncharged, is brought in contact with B, then brought in contact with C and finally removed away from both. The new force of repulsion between B and C is
  A)
  \[\frac{F}{4}\]   
  done clear
  B)
                         \[\frac{3F}{4}\]                
  done clear
  C)
         \[\frac{F}{8}\]                   
  done clear
  D)
         \[\frac{3F}{8}\]
  done clear
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• question_answer2) A charged particle q is shot towards another charged particle\[Q\]which is fixed, with a speed v. It approaches\[Q\]upto a closest distance r and then returns. If q was given a speed 2 v, the closest distance of approach would be
  A)
  r             
  done clear
  B)
                         2r           
  done clear
  C)
         r/2         
  done clear
  D)
         r/4
  done clear
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• question_answer3) Four charges equal to\[-Q\]are placed at the four comers of a square and a charge q is at its centre. If the system is in equilibrium, the value of q is
  A)
  \[-\frac{Q}{4}(1+2\sqrt{2})\]
  done clear
  B)
         \[\frac{Q}{4}(1+2\sqrt{2})\]       
  done clear
  C)
         \[-\frac{Q}{2}(1+2\sqrt{2})\]
  done clear
  D)
         \[\frac{Q}{2}(1+2\sqrt{2})\]
  done clear
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• question_answer4) A charged oil drop is suspended in uniform field of\[3\times {{10}^{4}}V/m,\]so that it neither falls nor rises. The charge on the drop will be (take the mass of the charge \[=9.9\times {{10}^{-15}}kg\text{ }and\text{ }g=10\text{ }m/{{s}^{2}}\])
  A)
  \[3.3\times {{10}^{-18}}C\]         
  done clear
  B)
  \[3.2\times {{10}^{-18}}C\]         
  done clear
  C)
         \[1.6\times {{10}^{-18}}C\]    
  done clear
  D)
         \[4.8\times {{10}^{-18}}C\]
  done clear
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