Three point charges are placed on the y-axis a charge q at

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Reference no: EM13635723

Three point charges are placed on the y-axis: a charge q at y=a, a charge -2q at the origin, and a charge q at y=-1 . Such an arrangement is a special case of what is called an electric quadrupole.

1) Find the magnitude of the electric field at points on the positive x-axis.

2 ) Find the direction of the electric field at points on the positive x-axis.

3) Use the binomial expansion to find an approximate expression for the magnitude of the electric field valid for .

Reference no: EM13635723

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