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J & K CET Engineering J and K - CET Engineering Solved Paper-2011

  • question_answer
    A charge Q is placed at the origin. The electric potential due to this charge at a given point in space is V. The work done by an external force in bringing another charge q from infinity up to the point is

    A)  \[\frac{V}{q}\]

    B)  \[Vq\]

    C)  \[V+q\]

    D)  \[V\]

    Correct Answer: B

    Solution :

    Potential at a point in a field is defined as the amount of work done in bringing a unit positive test charge (q) from to that point along any arbitrary path Potential, \[V=\frac{W}{{{q}_{0}}}\] or        Work done, \[W=qV\]


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