Figure shows two small electric dipoles of dipole moments $P_{1} a n d P_{2}$ parallel to each other and placed at a distance x apart. ‘x’ is very large, compare to the separation between charges then:

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they will repel each other

they will attract each other

Force of interaction between dipoles is of magnitude of $\frac{3 P_{1} P_{2}}{4 π ε_{0} x^{4}}$

Force of interaction between dipoles is of magnitude of $\frac{6 P_{1} P_{2}}{4 π ε_{0} x^{4}}$

answer is A, C.

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Detailed Solution

Apply concept of mutual potential energy of two electric dipoles

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