How much excess charge must be placed on a copper sphere 25.0 cm in diameter so that the potential of its center, relative to infinity, is 3.75 kv?
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As copper is a good conductor, all the charge will remain on the surface of the sphere. Potential at all points inside is the same and is equal to the potential on the surface as if the charge is concentrated at the center. Potential at infinity is zero.
=> kq/r = 1.5 x 1000
=> q
= 1500r/k
= 1500*(0.25)/9x10^9 C
= 4.167 x 10^(-8) C
hope it helps
mark as brainlist plz
=> kq/r = 1.5 x 1000
=> q
= 1500r/k
= 1500*(0.25)/9x10^9 C
= 4.167 x 10^(-8) C
hope it helps
mark as brainlist plz
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