HALL EFFECT

Hall Effect

When a specimen (metal or semicoductor) is placed in a transverse magnetic field and a direct current is passed through it, then an electric field is induced across it edges in the perpendicular direction of current as well as magnetic field. this phenomenon is called Hall effect.

Applicaions of Hall Effect

• Determine whether a semiconductor is of N type or P type.
• Determine the carrier (electron or hole) concentration.
• Measure the conductivity of a material and mobility.
• Measure magnetic flux density because hall voltage V_H for a given current, is propotional to magnetic flux density B.
• Measure power in an electromagnetic wave.