Question

If \( E_H \), \( J_x \) and \( B_z \) are the Hall field, current density and magnetic field strength respectively, then Hall coefficient is given by:ॉॉ

• A. \( R_H = \frac{E_H}{J_x B_z} \)
• B. \( R_H = \frac{J_x}{E_H B_z} \)
• C. \( R_H = \frac{B_z}{E_H J_x} \)
• D. None of the three

Hint:

The Hall coefficient is a measure of the charge carrier density in a conductor or semiconductor.

Answer 1

The Correct Option is A

The Hall coefficient is defined as:
\[ R_H = \frac{E_H}{J_x B_z} \] where \( E_H \) is the Hall voltage, \( J_x \) is the current density, and \( B_z \) is the applied magnetic field.