An isolated, irregularly shaped piece of platinum carries-8.05 x109 C of charge

Question

An isolated, irregularly shaped piece of platinum carries-8.05 x109 C of charge and is in electric equilibrium. The size of this body is about 4 mm. When the electric potential at some point on the metal's surface has the value V, the potential at a different point on the surface (indicate one) O equals V. O always differs from V. may equal V. When the electric field strength at some point on the body's surface has the value E, the field strength at a different point on the surface (indicate one): O equals O. O always differs from E O may equal E. O equals E Calculate the potential at a distance of 6.41 m from the center of the charged piece of platinum. Number

Explanation / Answer

The potential at different point on the surface is equal V

so option (1) is correct answer

(2)

The field strength at a different point on the surface isMay equal E

s o option (3) is correct answer

(3)

V= kq/ r

= 9 * 10^9 ( -8.05* 10^-9)/6.41

=-11.3 V

=

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