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CBSE Class 12-science Answered

The distance on the field point on the equatorial plane of a small electric dipole is halved. BY what factor , will the electric field due to dipole change ?
Asked by Ashish | 17 Apr, 2017, 02:50: PM
answered-by-expert Expert Answer
begin mathsize 12px style The space electric space field space due space to space straight a space dipole space along space the space equatorial space plane space is space inversely space proportional space to space cube space of space distance. straight E proportional to 1 over straight r cubed Since comma space straight r apostrophe equals straight r over 2 therefore straight E apostrophe proportional to fraction numerator 1 over denominator straight r apostrophe cubed end fraction equals 1 over open parentheses begin display style straight r over 2 end style close parentheses cubed equals 8 over straight r cubed therefore straight E apostrophe equals 8 straight E Hence comma space the space electric space field space due space to space dipole space will space become space 8 space times space the space original space field. end style
Answered by Romal Bhansali | 17 Apr, 2017, 06:11: PM

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