The electric potential at a perpendicular distance r from a long straight wire of cross-sectional radius a
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V(r) = – K In(r/a)
Where K is a constant. Calculate the electric field as a function of distance. Hence, using Gauss’s theorem, determine the charge q per unit length of the wire.
A second identical wire, carrying charge-q per unit length, is placed parallel to the first at a distance d from it. Calculate the potential difference between the wire, assuming that d >> a.
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In genera the relationship between the electric field E and the potential V is E V However the field ...View the full answer
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