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JIPMER Jipmer Medical Solved Paper-2001

  • question_answer
    If a charged spherical conductor of radius 10 cm has potential V at a point distant 5 cm from its centre, then the potential at a point distant 15 cm from the centre will be:

    A)  \[\text{3V}\]                    

    B)         \[\text{3/2V}\]               

    C)  \[\text{2/3V}\]               

    D)         \[\text{1/3V}\]

    Correct Answer: C

    Solution :

    We know that the potential inside and on the surface of a spherical conductor is same so           \[V={{V}_{surface}}=\frac{q}{10}\text{stat}\,\text{volt}\] \[{{V}_{out}}=\frac{q}{15}\text{stat}\,\text{volt}\] \[\frac{{{V}_{out}}}{V}=\frac{2}{3}\] so           \[{{V}_{out}}=\frac{2}{3}V\]


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