Question: A certain electric dipole is placed in a uniform electric field E of magnitude 20 N/C. Figure gives the potential energy U of the dipole

A certain electric dipole is placed in a uniform electric field E of magnitude 20 N/C. Figure gives the potential energy U of the dipole versus the angle 0 between E and the dipole moment p. The vertical axis scale is set by Us = 100 x 10-28J. What is the magnitude ofp?

U, -U, (f s7-01)a

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