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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > An electric dipole consists of two opposite charges of magnitude 1μC (micro-coulomb) separated by a distance of 2 cm . The dipole is placed in an electric field of 105Vm−1. (a) What maximum torque does the field exert on the dipole ? (b) How much work must an external agent do to turn the dipole end for end , starting from a position of alignment θ=0 ?

An electric dipole consists of two opposite charges of magnitude 1μC (micro-coulomb) separated by a distance of 2 cm . The dipole is placed in an electric field of 105Vm−1. (a) What maximum torque does the field exert on the dipole ? (b) How much work must an external agent do to turn the dipole end for end , starting from a position of alignment θ=0 ?

(Fig. ) shows four orientations of an electric dipole in an external electric field. Rank the orientations acording to the a. magnitude of the torque on the dipole and b. potential energy of the dipole greatest first.