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    Physics
    Grade-8
    Easy

    Question

    Which of the following information is provided by the electric field lines?

    1. The strength of the electric field in a region
    2. The direction of electric force at a point
    3. Both a and b
    4. Neither a nor b

    Hint:

    An electric field line is an imaginary line 

    The correct answer is: Both a and b

      An electric field line is an imaginary line or curve drawn through a region of empty space so that its tangent at any point is in the direction of the electric field vector at that point. The relative closeness of the lines at some place gives an idea about the intensity of electric field at that point.

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