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

done JEE Main Solved Paper-2014 Total Questions - 2

• question_answer1) A parallel plate capacitor is made of two circular plates separated by a distance of 5 mm and with adielectric of dielectric constant 2.2 between them. When the electric field in the dielectric is\[3\times {{10}^{4}}V/m,\]the charge density of the positive plate will be close to :   JEE Main  Solved  Paper-2014
  A)
  \[3\times {{10}^{4}}C/{{m}^{2}}\]            
  done clear
  B)
  \[6\times {{10}^{4}}C/{{m}^{2}}\]
  done clear
  C)
  \[6\times {{10}^{-7}}C/{{m}^{2}}\]          
  done clear
  D)
  \[3\times {{10}^{-7}}C/{{m}^{2}}\]
  done clear
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• question_answer2) Assume that an electric field \[\vec{E}=30{{x}^{2}}\hat{i}\]exists in space. Then the potential difference \[{{V}_{A}}-{{V}_{O}},\]where\[{{\text{V}}_{\text{O}}}\]is the potential at the origin and \[{{\text{V}}_{\text{A}}}\] the potential at x = 2 m is :   JEE Main  Solved  Paper-2014
  A)
  80 J        
  done clear
  B)
  80 J
  done clear
  C)
  120 J                     
  done clear
  D)
   −120 J
  done clear
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