A thin metallic wire having cross sectional area of 10⁻⁴ m² is used to make a ring of radius 30 cm. A positive charge of 2π C is uniformly distributed over the ring, while another positive charge of 30 pC is kept at the centre of the ring. The tension in the ring i s ______ N ; provided that the ring does not get deformed (neglect the influence of gravity). (given, 1/(4πε₀) = 9 × 10⁹ SI units)
Physics · Electrostatics · Electric field intensity
A thin metallic wire having cross sectional area of 10⁻⁴ m² is used to make a ring of radius 30 cm. A positive charge of 2π C is uniformly distributed over the ring, while another positive charge of 30 pC is kept at the centre of the ring. The tension in the ring is ______ N ; provided that the ring does not get deformed (neglect the influence of gravity). (given, 1/(4πε₀) = 9 × 10⁹ SI units)