   Chapter 16, Problem 18P

Chapter
Section
Textbook Problem

A positive point charge q = +2.50 nC is located at x = 1.20 m and a negative charge of −2q = −5.00 nC is located at the origin as in Figure P16.18. (a) Sketch the electric potential versus x for points along the x-axis in the range −1.50 m < x < 1.50 m. (b) Find a symbolic expression for the potential on the x-axis at an arbitrary point P between the two charges. (c) Find the electric potential at x = 0.600 m. (d) Find the point along the x-axis between the two charges where the electric potential is zero. (a)

To determine
The graph of electric potential.

Explanation

The electric potential varies with x as,

(b)

To determine
The expression for electric potential.

(c)

To determine
The expression for electric potential at 0.600 m.

(d)

To determine
The point where the electric potential is zero.

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