A bar of iron 1 $$cm^{2}$$ in cross-section has 10-4 Wb of magnetic flux in it. If $$ \mu $$r = 2000 what is the magnetic field intensity in the bar?

A

$$398 \times 10^{-4}$$ $$\frac{AT}{m}$$

B

398 $$\frac{AT}{m}$$

C

$$796 \times 10^{-3}$$ $$\frac{AT}{m}$$

D

$$398 \times 10^{4}$$ $$\frac{AT}{m}$$