CBSE Class 12-science Answered
derive an expression for electric field intensity at a point ont he eqiulatory line of the dipole.also determine its direction.
Asked by Balan | 26 Mar, 2018, 01:04: PM
Expert Answer
As shown in the figure, E+ is the electric field at a distance r from centre of dipole due to charge +q. Similarly E- is the field due to charge -q.
It can be seen from figure that vertical componenet will cancel each other and the resultant field 2Ecosθ is in horizontal direction parallel to horizontal.
where E = |E+| = |E-| and angle θ is shown in the figure.
hence net field is given by
where p = 2qd, is dipole moment . Direction of the resultant field is shown in diagram
Answered by Thiyagarajan K | 27 Mar, 2018, 07:24: AM
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