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Three point charges are located on the y-axis: a charge q at y=a, a charge -2q at the origin, and a charge q at y=-a.

A. discovers the magnitude of the electric field at points on the positive x-axis.

Convey the answer in terms of the variables q, x, a and appropriate constants.

B. Find out the direction of the electric field at points on the positive x-axis.

C. Use the binomial expansion to find an approximate expression for the magnitude of the electric field valid for x gg a.

state the answer in terms of the variables q, x, a and appropriate constants.

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  • Category:- Physics
  • Reference No.:- M9720374

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