A ring of charge with radius 0.5m has 0.002 m gap. If the ring carries a charge of +1 C, the electric field at the center is

Q.A ring of charge with radius 0.5m has 0.002 m gap. If the ring carries a charge of +1 C, the electric field at the center is

(a) 7.5 × 10⁷NC^-1

(b) 7.2 × 10⁷ NC^-1

(c) 6.2 × 10⁷ NC^-1

(d) 6.5 × 10⁷NC^-1