Question

E K 0 0 12 m, 42 m: Two objects having charges 91 and 92 and masses m, and m2 are suspended by silk treads. The resultant electric field at the point k due to these charges is E. System is in equilibrium and silk treads are making same angle with vertical direction ( saye). If e1>e, which of the following expressions is correct? 1. 91 92 II. m1 = m2 III. Both charges are positive Yanıtınız: OA) I only OB) I and II OC) III only OD) I and III O E) I ll and I

Answer 1

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ER > €, T2 -> F qai mag Electric field at a distance e ใน ER 12 9. 8 9. makes Electric field at k as e & Ex. Horizontal component of E. & Eg cancel out each other s vertical components add up to give Enet as E. = leg! So le, Kai 192 8,3 92 11 91 l, since &, & → 9,> 92 Hence I. is False Also the net electric field is charges. Hence the both charges are positive. . is correct away from the f be the electrostatic force between 9, 8 42- component of F adda mig whereas Component of F gates opposes the mag Hence m can not be equal to ma up with I is false . Ophion c is correct.