Experts kindly help me

Experts kindly help me Given a square frame of diagonal length 2r made of insulating wires. There is a short dipole, having dipole moment P, fixed in the plane of the figure lying at the center of the square, making an angle d as shown in figure. Four identical particles having charges of magnitude q each and alternately positive and negative sign are placed at the four corners of the square. Select the correct alternative(s). (Multiple Correct Type) r Electrostatic force on the system of O 6kPq four charges due to dipole is Electrostatic force on the system of 6kPq O four charges due to dipole is cos Net torque on the system of four O charges about the centre of the square due to dipole is zero Net torque on the system of four charges about the centre of the square O 3kPq due to dipole is —r

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