determine the electric field e⃗ at points along the perpendicular bisector. measure r from the −2q charge and assume r≫ℓ . enter the x and y components of the force separated by a comma. express your answer in terms of the variables q , l , r , and appropriate constants. one type of electric quadrupole consists of two dipoles placed end to end with their negative charges (say) overlapping; that is, in the center is −2q flanked (on a line) by a q to either side