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  • Electric charges q, q,-2 q are placed at the corners of an equilateral triangle A B C of side 1 The magnitude of electric dipole moment of the system is -Option:

Electric charges q, q,-2 q are placed at the corners of an equilateral triangle A B C of side 1 The magnitude of electric dipole moment of the system is -

Option: 1

q l


Option: 2

2ql


Option: 3

\sqrt{3} q l


Option: 4

4ql


Answers (1)

best_answer


\mathrm{\begin{aligned} R & =\sqrt{P_1^2+P_2^2+2 P_1 P_2 \cos \theta} \\ & =\sqrt{p^2+p^2+2 p^2 \cos 60^{\circ}} \\ & =\sqrt{3 p^2}=\sqrt{3} \rho \end{aligned} }

Electric dipole moment  \mathrm{=\sqrt{3} q \cdot l . }



 

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sudhir.kumar

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