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Represent electric field lines around (i...

Represent electric field lines around (i) a positive point charge (ii) a negative point charge and (iiii) an electric dipole.

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Knowledge Check

  • The lines of force of the electric field of a positive charge (+q) and a negative charge (-q) are shown in figs. (a) and (b) below. Then :

    A
    the work done in moving a small positive charge `(+q_(0))` from Q to P will be positive
    B
    the work done in moving a small negative charge `(-q_(0))` from B to A will be positive
    C
    in going from Q to P , the kinetic energy of a small negative charge `(-q_(0))` increase
    D
    in going from B to A , the kinetic energy of a small negative charge `(-q_(0))` decreases .

  • The figure shows the electric fields lines due to two positive charges. The magnitudes E_(A), E_(B) and E_(C ) and of the electric fields at points A, B and C respectively are related as :

    A
    `E_(A) gt E_(B) gt E_(C )`
    B
    `E_(B) gt E_(A) gt E_(C)`
    C
    `E_(A)= E_(B) gt E_(C)`
    D
    `E_(A) gt E_(B) = E_(C)`

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