# A charge +q is at the origin. A charge -2q is at x = 1.30 m on the +x axis.(a) For what finite value of x is the electric field zero?(b) For what finite values of x is the electric potential zero? (Note: Assume a reference level of potential V = 0 at r = 0,.)Smallest value of x:-1.3Largest value of x:

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Step 1

(a)

The figure shows the charge is located on the +x axis.

From the figure, the electric field where the point zero at a finite distance,

Step 2

Solve the above relation for quadratic equation.

Hence, finite value of x at which the electric fields zero taken as negative value is -8.06 m.

Step 3

(b)

The figure shows the charge is located on the +x axis.

From the figure, the electric potential where the point zero at a finite distance,

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