CBSE Class 12-science Answered
an electric dipole is placed in a uniform electric field vector E with its dipole moment vector P parallel to the field . Find
1) the work done in turning the dipole till its dipole moment points in the direction opposite to vector E.
Asked by kothattil439 | 13 Aug, 2019, 09:21: PM
Expert Answer
Torque τ acting on a dipole is given by, τ= p×E .....................(1)
where p is dipole moment and E is electric Field intensity.
Workdone dw for small angular displacement dθ is given by, dw = τ dθ
If a dipole is initially at the field direction, then workdone W to turn the dipole
to the opposite direction is given by
Answered by Thiyagarajan K | 13 Aug, 2019, 11:17: PM
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