When three electric dipoles are rear each ether, they each experience the electr

Question

When three electric dipoles are rear each ether, they each experience the electric field of the other two, and the three dipole system has a certain potential energy, the figure shows two arrangements in which three electric dipoles are side by side, Each dipole has the same magnitude of electric dipole moment, and the spacings between adjacent dipoles are Identical. In which arrangement is the potential energy of the three - dipole system greater? We may not say without knowing the amount of changes. Energies are the same. Energy of (a) is greater than energy of (b). Energy (a) is less man energy of (b).

Explanation / Answer

the potential enerrgy of the fig(b) is greater than fig(b)

because In the figure (a) two lines are same direction but the third charge is moving opposite of remaing two lines

so the potential energy is negative

in the figure (b) three lines are moving in same direction

so the potential energy is positive

the correct option is D

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