A sample of extrinsic semicondutor is in the shape of a slab whose length is 5cm , width 0.5cm, and thickness 1mm. When this slab is placed in a magnetic field of 0.6Wb/m2 normal to the slab, a Hall voltage of 8mV develops at a current of 10mA. Calculate : the mobility of carrier (b) the carrier density ?

A sample of extrinsic semicondutor is in the shape of a slab whose length is 5cm , width 0.5cm, and thickness 1mm. When this slab is placed in a magnetic field of 0.6Wb/m2 normal to the slab, a Hall voltage of 8mV develops at a current of 10mA. Calculate : the mobility of carrier (b) the carrier density ?