- #1
yang09
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Homework Statement
A long thin wire, hundreds of meters long, carries a uniformly distributed charge of -7.2 microCoulombs per meter of length. Estimate the magnitude and direction of the electric field at points (a) 5.0 m and (b) 1.5m perpendicular from the center of the wire.
Homework Equations
Electric flux = Integral(E*dA)
Electric flux = Charge enclosed(Q) divided by Eo
Therefore, equating the two equations, you get:
Q/Eo = Integral(E*dA)
The Attempt at a Solution
The answer to part a(5.0m) is -2.6 X 10^4 N/C, but I do not know how they got that answer. I equated the two equations and solved for E, but I got 2.6 X 10^7 as an answer, which is wrong.