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                                    2.Electric charge is uniformly distributed along a long straightwire of radius Imm. The charge per cm length of thewire is Q coulomb. Another cylindrical surface of radius50 cm and length lm symmetrically encloses the wire asshown in the figure. The total electric flux passing throughthe cylindrical surface is:1000(1)(2) 1000EO100() 1000+(3) 20050cm1000(neo)(FEO) | 
                            
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Answer»  solution : charge enclosed inside the cylinderical surface is , = linear charge density of wire × length of cylinder = Q coulomb/cm × 100cm = 100Q Coulombs now, from Gauss theorem, electric flux through cylindrical surface = charge enclosed/permittivity of medium 100 coulomb is wrtot answer Option (2) is correct answer the answer could be option 4  | 
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