sapling u, daban stom with charge +2e) is located at the origin of x axis, and a

Question

sapling u, daban stom with charge +2e) is located at the origin of x axis, and an electron (with Give the X coordinate 126 is one iocation along the x axis at which the electric field is zero. of this point in cm. Assume that the potential is defined to be zero infinitely far away from the particles. Unlike the electric field, the at multiple points near the particles. Find the two points along the xads which the potential is zero, and express their locations along the x axis in cm, starting with the point which is farther away from the origin. Farther Point: Closer Point Number no Previous ® Give up view solution e Check Answer 0 Next Ext Hint

Explanation / Answer

a)The point will be on the right side of origin. Let the location be x.

k*2e/x^2-k*e/(x-1.26)^2=0

2/x^2-1/(x-1.26)^2=0

x=4.3cm

b)For potential,

k*2e/x-k*e/(x-1.26)=0

2/x-1/(x-1.26)=0

x=2.52cm

The other point lies between the charges.

2/x-1/(1.26-x)=0

x=0.84cm

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