Hand written solutions are strictly prohibited. 4. An insulating semicircular arc of radius R consists of two quarters. One quarter has a totalcharge -Q uniformly distributed and the other half +Q. Find the electric field at the center PId=1= k ldq|R²e =Ex=SdEx = S-2/del cose=dEx=-2 IdEl coseJ-₂001-2 cos oldE)= S-2 cosok dR22QTRI cos (o) (k 20 do)R2deJeans=Q₂ =deПр dsdq →edoSin (45)Cos (45°)+++rdqdq=/2Q R deTRuse thikemisenS=RO1constds =R do

charge on the element dq=λRdθ where λ= charge per unit length.Here sin component of net electric…

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4. An insulating semicircular arc of radius R consists of two quarters. One quarter has a total charge -Q uniformly distributed and the other half +Q. Find the electric field at the center P