A long solenoid has 200 turns per $$cm$$ and carries a current $$i$$. The magnetic field at its centre is $$6.28 \times 10^{-2}\,Weber/m^2$$. Another long solenoid has 100 turns per $$cm$$ and it carries a current $$i/3$$. The value of the magnetic field at its centre is

A

$$1.05 \times 10^{-4}\,Weber/m$$

B

$$1.05 \times 10^{-2}\,Weber/m^2$$

C

$$1.05 \times 10^{-5}\,Weber/m^2$$

D

$$1.05 \times 10^{-3}\,Weber/m^2$$