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JEE Main & Advanced Physics Electrostatics & Capacitance Question Bank Electric Dipole

  • question_answer
    If the magnitude of intensity of electric field at a distance \[x\] on axial line and at a distance \[y\] on equatorial line on a given dipole are equal, then \[x:y\] is     [EAMCET 1994]

    A)                    \[1:1\]

    B)                                      \[1:\sqrt{2}\]

    C)                    \[1:2\]

    D)                                      \[\sqrt[3]{2}:1\]

    Correct Answer: D

    Solution :

                \[{{E}_{axial}}={{E}_{equatorial}}\]Þ \[k.\frac{2p}{{{x}^{3}}}=\frac{k.p}{{{y}^{3}}}\] Þ \[\frac{x}{y}=\frac{{{2}^{1/3}}}{1}=\sqrt[3]{2}:1\]


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