A Charge Per Unit Length Given by λ(X) = Bx

question 57

Multiple Choice

A charge per unit length given by λ(x) = bx, where b = 12 nC/m², is distributed along the x axis from x = +9.0 cm to x = +16 cm. If the electric potential at infinity is taken to be zero, what is the electric potential at the point P on the y axis at y = 12 cm?

• A) 5.4 V
• B) 7.2 V
• C) 9.0 V
• D) 9.9 V
• E) 16 V

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