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NEET-XII-Physics

01: Electric Charges And Fields

I - page 3
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  • #23
    An infinite line charge produces a field of 9 × 104 N/C at a distance of 2 cm. Calculate the linear charge density.
    Ans : Electric field produced by the infinite line charges at a distance d having linear charge density λ is given by the relation,





    Where,

    d = 2 cm = 0.02 m

    E = 9 × 104 N/C

    `` \epsilon``0 = Permittivity of free space

    = 9 × 109 N m2 C-2



    = 10 μC/m

    Therefore, the linear charge density is 10 μC/m.