Definition

Noun: - The force on a point charge moving in a magnetic field: The Lorentz force is the force exerted on a charged particle, such as an electron, when it moves through a magnetic field. This force acts in a direction perpendicular to both the particle's velocity and the magnetic field direction. - The force on a current-carrying conductor in a magnetic field: The Lorentz force also describes the force experienced by a wire carrying an electric current when placed within a magnetic field. This force is perpendicular to both the direction of the current and the magnetic field.

Usage

The term "Lorentz force" is used in physics and engineering to describe a fundamental electromagnetic interaction. - It is a singular, uncountable noun phrase. - It is typically used with the definite article "the" (e.g., the Lorentz force). - It is named after the Dutch physicist Hendrik Lorentz.

Examples

• Noun:
  • The Lorentz force causes the charged particle to follow a curved path.
  • An electric motor operates based on the principle of the Lorentz force acting on a current loop.
  • Calculating the Lorentz force is essential for designing particle accelerators.

Advanced Usage

• "To calculate the Lorentz force": To determine the magnitude and direction of this force using the formula F = q(v × B), where F is force, q is charge, v is velocity, and B is the magnetic field.
  • Physicists calculate the Lorentz force to predict the motion of particles in a cyclotron.
• "The Lorentz force law": Refers to the mathematical equation that defines the Lorentz force.
  • The Lorentz force law is a cornerstone of classical electromagnetism.

Variants and Related Words

• Electromagnetic force: A more general term for the interaction between electric and magnetic fields and charged particles, which includes the Lorentz force.
• Laplace force: A term sometimes used synonymously with the magnetic component of the Lorentz force on a current-carrying wire.

Synonyms

• Magnetic force (Note: This is a less specific synonym, as "Lorentz force" specifically refers to the force on a charge within a magnetic field.)

Related Phrases

• Right-hand rule: A mnemonic used to determine the direction of the Lorentz force.
  • Use the right-hand rule to find the direction of the Lorentz force on a positive charge.
• Cross product (v × B): The vector multiplication in the Lorentz force formula, indicating the force is perpendicular to the plane containing velocity and magnetic field vectors.

Noun

1. the force experienced by a point charge moving along a wire that is in a magnetic field; the force is at right angles to both the current and the magnetic field
   • the Lorentz force can be used to suspend a current-carrying object between two magnets