Electric Charges & Fields | Electric Field Due To Infinite Line Charge All the best! 1. An infinite line charge produces a field of 18 x 1010 NC-1 at a distance of 1 m. The linear charge density is- A. 10 C m-1 B. 2 x 10-1 C m-1 C. 2 x 10-2 C m-1 D. 2 x 10-3 C m-1 Option (A) Option (B) Option (C) Option (D) None 2. Two parallel infinite line charges with linear charge densities +λ C/m and -λ C/m are placed at a distance of 2R in free space. What is the electric field mid-way between the two line charges? A. Zero B. 2λ/πεoR C. λ/πεoR D. λ/2πεoR Option (A) Option (B) Option (C) Option (D) None 3. Alpha particle is revolving around an infinitely long line charge of linear charge density λ at perpendicular distance r from it. The centripetal force on the particle is- A. λe / 2πεor B. λe / πεor C. λe / 4πεor D. λe / πrεor2 Option (A) Option (B) Option (C) Option (D) None 4. An infinite line charge is at the axis of a cylinder of length 1 m and radius 7 cm. If electric field at any point on the curved surface of cylinder is 250 N/C, then net electric flux through the cylinder is- A. 1.1 x 102 Nm2C-1 B. 9.74 x 10-6 Nm2C-1 C. 5.5 x 106 Nm2C-1 D. 2.5 x 102 Nm2C-1 Option (A) Option (B) Option (C) Option (D) None 1 out of 4 Time's up