Solved papers for JEE Main & Advanced JEE Main Solved Paper-2016

done JEE Main Solved Paper-2016 Total Questions - 2

• question_answer1) A combination of capacitors is set up as shown in the figure. The magnitude of the electric field, due to a point charge Q (having a charge equal to the sum of the charges on the \[4\mu F\] and \[9\mu F\]capacitors), at a point 30 m from it , would equal: [JEE Main Solved Paper-2016 ]
  A)
   480 N/C                              
  done clear
  B)
  240 N/C
  done clear
  C)
  360 N/C                               
  done clear
  D)
  420 N/C
  done clear
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• question_answer2) The region between two concentric spheres of radii 'a' and 'b', respectively (see figure), has volume charge density \[\rho =\frac{A}{r},\]where A is a constant and r is the distance from the centre. At the centre of the spheres is a point charge Q. The value of A such that the electric field in the region between the spheres will be constant, is :- [JEE Main Solved Paper-2016 ]
  A)
  \[\frac{2Q}{\pi {{a}^{2}}}\]                                          
  done clear
  B)
  \[\frac{Q}{2\pi {{a}^{2}}}\]
  done clear
  C)
  \[\frac{Q}{2\pi ({{b}^{2}}-{{a}^{2}})}\]                   
  done clear
  D)
  \[\frac{2Q}{\pi ({{a}^{2}}-{{b}^{2}})}\]
  done clear
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