Mathematically it can be given as In extrinsic semiconductor the current carrying charge carriers are of one type either electrons or hole, like in N-type semiconductor the charge carriers are electrons and in P-type semiconductor the charge carriers are holes. Therefore, the value of charge density can be determined if we know the values of B, IV H and w. Thus, electric field will be perpendicular to both, the direction in which magnetic field is acting and the direction in which current is flowing. This accumulation of charge carriers will create electric field. In case of P-type semiconductor the bottom surface will be more positive with respect to top surface i. Thus, in N-type semiconductor when the semiconductor slab is placed in magnetic field the bottom surface of the semiconductor becomes more negative with respect to top surface i. Candidati iscritti a corsi di laurea, laurea magistrale e In N-type semiconductor the major current carrying component is electron, thus these electrons will be pushed downwards. The charge carriers which are flowing along the positive direction of X-axis will be pushed downwards due to magnetic force. Therefore, when current starts flowing in a metal slab the charge carriers will experience force exerted by magnetic field. The magnetic field is acting along positive Z-direction thus North Pole can be considered upward to the metal slab and South Pole can be considered downward to the metal slab. Thus, the current carrying path is perpendicular to the path along which magnetic field is acting. According to co-ordinate geometry, X-axis, Y-axis and Z-axis are perpendicular to each other.

The magnetic field is applied in such a way that magnetic field acts along the positive direction of Z-axis. Now, direct current is passed through the metal or semiconductor specimen in such a way that direction of flow of current is along the positive direction of X-axis. Consider a piece of metal is placed in magnetic field.ДЄnd the magnetic field is perpendicular to the metal or semiconductor specimen. Definition: When a piece of metal or semiconductor is placed in magnetic field, more precisely in transverse magnetic field, and direct current is allowed to pass through it, then the electric field gets developed across the edges of metal or semiconductor specimen.

Universal current sensor ppt