field strength

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field strength

A student measures the magnetic field strength around a bar magnet.

Definition

Noun: 1. The magnitude of a field (especially electromagnetic) at a given point: A quantitative measure of the intensity of a force field, such as an electric or magnetic field, at a specific location. It is often represented as a vector, indicating both strength and direction. 2. (Physics) The vector sum of forces exerted by a field on a unit quantity: Specifically, the force experienced per unit charge, unit mass, or unit magnetic pole placed within the field.

Usage Examples
  • Noun:
    • The field strength of the radio signal decreases rapidly with distance from the transmitter.
    • Scientists measured the magnetic field strength at the Earth's poles.
    • A higher electric field strength is required to cause electrical breakdown in that insulating material.
Advanced Usage
  • "Field strength meter": A device used to measure the intensity of a radio frequency field.

    • The technician used a field strength meter to optimize the antenna's broadcast range.
  • "Peak field strength": The maximum instantaneous value of the field intensity.

    • The design must account for the peak field strength during a lightning strike.
Variants and Related Words
  • Field intensity (n): A synonymous term for field strength, often used interchangeably.

    • The field intensity of the magnet was mapped across the surface.
  • Magnetic flux density (n): A related but distinct measure for magnetic fields, measured in tesla.

  • Electric field intensity (n): The electric force per unit charge, measured in volts per meter.
Synonyms
  • Field intensity
  • Field force
Related Phrases
  • Signal strength: Often used in telecommunications to describe the power of a received signal, which is related to the electromagnetic field strength at the receiver.
    • The signal strength on my phone is very low in this valley.
field strength

A student measures the magnetic field strength around a bar magnet.

Noun
  1. the vector sum of all the forces exerted by an electrical or magnetic field (on a unit mass or unit charge or unit magnetic pole) at a given point in the field

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