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Fourpoint charges q_A =2 mu C , q_B =5 muC, q_C =2 mu C and q_D =5 mu Care located at the corners of a square ABCDof side 10 cm. What is the force on a charge of 1mu Cplaced at the centre of the square ?(##U_LIK_SP_PHY_XII_C01_E01_006_Q01.png" width="80%"> |
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Answer» Solution :As SHOWN in the charge distribution is symetrical and `AO=BO=CO=DO=(10)/(SQRT(2)) cm , ` HENCE`oversetto (F_(OB) )and oversetto (F_(OD))` balance each other, Similarlly , ` oversetto (F_(OA) )and oversetto (F_(OC)) ` balance each other. ` therefore ` Net force F on ` 1 MU C ` charges placed at the centre point O of the square `ABCD= 0. ` |
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