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physics

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A spherical conductor has a radius of 14.0 cm and charge of 26.0 µC. Calculate the electric field and the electric potential (a) r = 10.0 cm, (b) r = 20.0 cm, and (c) r = 14.0 cm from the center.

how do i calculate k?

  • physics - ,

    k is the Coulomb's-law constant, which appears in the formula you need to use, you look it up. It is a constant of nature.

    (a) there is no E-field indide the conductor. The potential there is the value at the surface, which equals
    -kQ/R
    where R is the sphere radius, 0.14 m, and Q is the charge on the sphere.

    (b) and (c): Your turn

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