Astatic galvanometer is a device that is used to measure small electric currents. It is a type of sensitive instrument that can detect even the slightest changes in current. The device is commonly used in scientific research, as well as in electrical engineering and other related fields. In this article, we will explore the definition and meaning of astatic galvanometer in detail.
Definitions
An astatic galvanometer is a type of sensitive instrument that is used to measure small electric currents. It consists of a coil of wire that is suspended between two magnets. The magnets are arranged in such a way that their magnetic fields cancel each other out, making the coil insensitive to external magnetic fields.
Origin
The astatic galvanometer was first invented by William Thomson, also known as Lord Kelvin, in the mid-19th century. Thomson was a Scottish physicist and mathematician who made significant contributions to the fields of electromagnetism and thermodynamics. The astatic galvanometer was one of his most important inventions.
Meaning in different dictionaries
According to the Merriam-Webster dictionary, an astatic galvanometer is “a galvanometer having two magnetic needles arranged so as to counteract each other’s directive action and thus eliminate the effect of the earth’s magnetism.”
The Oxford English Dictionary defines an astatic galvanometer as “an instrument for detecting and measuring small electric currents, consisting of a coil of wire suspended between two magnets so arranged that the magnetic fields cancel each other out.”
Associations
The astatic galvanometer is often associated with scientific research, particularly in the fields of electromagnetism and electrical engineering. It is commonly used to measure small electric currents in experiments and other research projects.
Synonyms
Some synonyms of astatic galvanometer include:
- Thomson galvanometer.
- Kelvin galvanometer.
- sensitive galvanometer.
- null-type galvanometer.
Antonyms
There are no direct antonyms of astatic galvanometer, as it is a specific type of instrument with no direct opposite. However, some instruments that are less sensitive than the astatic galvanometer could be considered less effective or precise.
The same root words
The root words in astatic galvanometer are “astatic” and “galvanometer.” Astatic refers to a condition where a magnetic needle is balanced and unaffected by external magnetic fields. Galvanometer is a device used to measure electric currents.
Example Sentences
- The astatic galvanometer is a highly sensitive instrument that can detect even the smallest changes in current.
- Lord Kelvin’s invention of the astatic galvanometer revolutionized the field of electrical engineering.
- The research team used an astatic galvanometer to measure the electric currents in their experiment.
- The astatic galvanometer is an essential tool for anyone working in the field of electromagnetism.
- The null-type galvanometer is a type of astatic galvanometer that is commonly used in scientific research.