Hall Effect Complete Set Up

The Hall Effect Apparatus is designed to study the Hall Effect in an n-type semiconductor by measuring the Hall voltage generated when a current-carrying semiconductor is placed in a magnetic field. The apparatus enables students to investigate the Hall Effect, determine the conductivity of the semiconductor, study magnetic field distribution, and understand methods for eliminating systematic measurement errors. Manufactured by Atico Export India.

Principle

The Hall Effect occurs when a current-carrying conductor or semiconductor is placed in a magnetic field perpendicular to the direction of current flow. A voltage, known as the Hall Voltage, is developed across the specimen in a direction perpendicular to both the current and the magnetic field. This phenomenon is widely used for measuring magnetic fields and determining semiconductor properties such as carrier type and conductivity.

Objectives

• Study the Hall Effect in an n-type semiconductor.
• Investigate the Hall voltage generated in a magnetic field.
• Explore systematic measurement errors and methods for their elimination.
• Determine the conductivity of the semiconductor.
• Plot the magnetic field distribution produced by the Helmholtz coils.

• Hall Effect studies.
• Semiconductor conductivity measurements.
• Magnetic field mapping.
• Physics laboratory experiments.

Hall Sensor :

• n-type GaAs Hall sensor chip for accurate Hall voltage measurements.

Helmholtz Coil Pair :

• Effective diameter: 75 mm
• Central magnetic induction: 11.25 mT at 0.5 A

Mechanical Traverse :

• Two-axis traverse mechanism for magnetic field mapping.

Constant Current Sources :

• Magnet current: 0 to 0.5 A
• Hall driving current: 0 to 3 mA

Reversing Switch :

• Relay-controlled reversing switch for eliminating systematic measurement errors.

Digital Display :

• Built-in 3½-digit current and voltage meters for precise measurements.

Storage Case :

• Durable metal storage case for safe storage and transportation of the apparatus.