For an n-type Ge specimen, width = 4 mm, length = 1 mm, current (along the length of nen) = 1 mA, magnetic field (perpendicularto the current flow direction) = 0.1 $$\frac{Wb}{m^{2}}$$ and Hall voltage magnitude = 0.005 V. Calculate the majority carriers density.

A

$$3 \times 10^{19} cm^{-3}$$

B

$$3 \times 10^{19} m^{-3}$$

C

$$6 \times 10^{19} cm^{-3}$$

D

$$6 \times 10^{19} m^{-3}$$