Charge of Uniform Linear Density 3 $\int _ { 0 } ^ { 3 } \frac { 27 d x } { x }$

question 4

Multiple Choice

Charge of uniform linear density 3.0 nC/m is distributed along the x axis from x = 0 to x = 3 m.Which of the following integrals is correct for the electric potential (relative to zero at infinity) at the point x = +4 m on the x axis?

• A) \(\int _ { 0 } ^ { 3 } \frac { 27 d x } { x }\).
• B) \(\int _ { 0 } ^ { 3 } \frac { 9 d x } { 4 - x }\)
• C) \(\int _ { 0 } ^ { 3 } \frac { 27 d x } { 4 - x }\)
• D) \(\int _ { 0 } ^ { 3 } \frac { 27 d x } { x }\)
• E) \(\int _ { 0 } ^ { 3 } \frac { 27 d x } { 4 + x }\).

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