The potential energy of the dipole in the equilibrium position is :
+3×10−23J
−3×10−23J
−6×10−23J
−3×10−36J
A
−3×10−36J
B
−6×10−23J
C
+3×10−23J
D
−3×10−23J
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Solution
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As dipole is in equilibrium P.E. should be minimum
∴θ= angle between dipole and electric field =0o Now, potential energy U=−P.E =−7.68×10−29×4×105 =−3×10−23J
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