The Hall Effect Quiz

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Questions and Answers

Who discovered the Hall effect?

Baltimore, Maryland
James Clerk Maxwell
Johns Hopkins
Edwin Hall (correct)

What is the Hall effect?

Production of a potential difference across an electrical conductor transverse to an electric current and an applied magnetic field (correct)
Production of a magnetic field across an electrical conductor transverse to an electric current and an applied potential difference
Production of a potential difference across an electrical conductor parallel to an electric current and an applied magnetic field
Production of an electric current across an electrical conductor transverse to an applied magnetic field and potential difference

What is the Hall coefficient?

Ratio of induced magnetic field to the product of the current density and the applied electric field
Ratio of induced magnetic field to the product of the current density and the applied potential difference
Ratio of induced potential difference to the product of the current density and the applied magnetic field
Ratio of induced electric field to the product of the current density and the applied magnetic field (correct)

What does the Hall coefficient depend on?

Type, number, and properties of the charge carriers in the current (C) Signup and view all the answers

When was the modern theory of electromagnetism systematized?

Between 1861 and 1862 (B) Signup and view all the answers

What is the Hall effect?

The production of a potential difference across an electrical conductor transverse to an electric current and an applied magnetic field (A) Signup and view all the answers

What is the Hall coefficient?

The ratio of the induced electric field to the product of the current density and the applied magnetic field (D) Signup and view all the answers

What does the Hall coefficient depend on?

The type, number, and properties of the charge carriers that constitute the current (A) Signup and view all the answers

When was the modern theory of electromagnetism systematized?

1861-1862 (A) Signup and view all the answers

Who discovered the Hall effect?

Edwin Hall (D) Signup and view all the answers

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Study Notes

The Hall Effect

Edwin Hall discovered the Hall effect in 1879.
The Hall effect is a phenomenon in which a voltage difference is produced across a conductor when it carries an electric current and is placed in a magnetic field perpendicular to the current.
The Hall coefficient is a measure of the strength of the Hall effect in a given material.

Hall Coefficient

The Hall coefficient depends on the type of material, its temperature, and the strength of the magnetic field.
It is a constant of proportionality that relates the Hall voltage to the product of the current density and the magnetic field strength.

History of Electromagnetism

The modern theory of electromagnetism was systematized by James Clerk Maxwell in the late 19th century, leading to a fundamental shift in the understanding of electricity and magnetism.
Maxwell's work built upon the discoveries of earlier scientists, including Michael Faraday and Andre-Marie Ampere.