A charge praticle of charge q is kept at the centre of the semicircular charged, ring . If linearcharge density is lambda every where, as shown in the figure. Then net electrostatic force on the particle is -

A charge praticle of charge q is kept at the centre of the semicircula

1.	A charge praticle of charge q is kept at the centre of the semicircular charged, ring . If linearcharge density is lambda every where, as shown in the figure. Then net electrostatic force on the particle is -
Answer» `(lambdaq)/(4piepsi_(0)R)` ` (sqrt(5)lambdaq)/(4piepsi_(0)R)` ` (3lambdaq)/(4piepsi_(0)R)` `(sqrt(2)lambdaq)/(4piespi_(0)R)` Solution :Due to rod only `vecF_(1)=(lambdaq)/(4piepsi_(0)R)` Due to SEMICIRCLE only `vecF_(2)=(lambdaq)/(2piepsi_(0)R)` `F_("NET")sqrt(F_(1)^(2)+F_(2)^(2))rArrF_("net")=sqrt(5lambda_(q))/(4piepsi_(0)R)`

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A charge praticle of charge q is kept at the centre of the semicircular charged, ring . If linearcharge density is lambda every where, as shown in the figure. Then net electrostatic force on the particle is -

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