An infinite line charge produces a field of (1.8 × 10¹⁰) Newton per Coulomb at a distance of 1 m. The linear charge density is:
a) (9 × 10⁻¹⁰) C/m
b) (1.8 × 10⁻⁹) C/m
c) (3.6 × 10⁻¹⁰) C/m
d) (5 × 10⁻¹⁰) C/m