Questions
An electric dipole of dipole moment p is aligned parallel to a uniform electric field E. The energy required to rotate the dipole by is
detailed solution
Correct option is B
Potential energy of dipole, U=-pEcosθ2-cosθ1 Here, θ1=0°,θ2=90° ∴ U=-pEcos90°-cos0° =-p E(0-1)=p ESimilar Questions
Electric dipole consists of two charges of magnitude separated by a distance of 2 cm. The dipole is in an external field of 105 N/C. What maximum torque does the field exert on the dipole?
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