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NEET Sample Paper NEET Sample Test Paper-24

  • question_answer
    Two thin dielectric slabs of dielectric constants \[{{K}_{1}}\]and \[{{K}_{2}}(K<{{K}_{2}})\]axe inserted between plates of aparallel plate capacitor, as shown in the figure. The variation of electric field E between the plates with distance d as measured from plate P is correctly shown by

    A)  

    B)

    C)

    D)

    Correct Answer: C

    Solution :

     Electric field inside parallel plate capacitor having charge Q at place where dielectric is absent\[=\frac{Q}{A{{\varepsilon }_{0}}}\] where dielectric is present\[=\frac{Q}{KA{{\varepsilon }_{0}}}\] As \[{{K}_{1}}<{{K}_{2}}\]so \[{{E}_{1}}>{{E}_{2}}\] Hence graph [c] correctly depicts the variation of electric field E with distance d.


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