who invented moving coil galvanometer?

Answer 1

It looks like Johann Schweigger in 1825! More info below.

The first practical use of the galvanometer was made by Karl Friedrich Gauss in 1832. Gauss built a telegraph that sent signals by deflecting a magnetic needle. This style is known as a moving-magnet galvanometer. More commonly used today is the moving-coil or moving-mirror galvanometer, sometimes called a D'Arsonval galvanometer.

The invention of the moving-coil galvanometer is credited to Johann Schweigger in 1825, three years later Italian physicist C. L. Nobilli designed an astatic type. It consists of a coil that has been wound with very fine wire mounted between the poles of a permanent magnet. Attached to the coil is a pointer. When electric current is turned on, the coil turns and the deflection angle is measured as the pointer moves along a graduated scale.

Answer 2

From Wikipedia: The term "galvanometer" derives from the surname of Luigi Galvani. Many early applications of galvanometers for measuring and recording are associated with William Thomson (Lord Kelvin). The earliest galvanometer was reported by Johann (Johan) Schweigger of Nuremberg at the University of Halle on 16th September 1820. André-Marie Ampère also contributed to the development of the galvanometer. I haven't been able to determine if Schweigger's galvanometer was a moving coil or iron vane instrument. The physicist Johann Salomo Christoph Schweigger is best known as the inventor of a device for measuring weak electric currents, the so-called multiplicator. From the 3rd reference, it appears to have been a moving coil instrument.

Answer 3

The MCG was invented by Micheal Faraday
The other versions of the MCG were invented later by scientists such as
Thomas Alva Edison and Ampere

Answer 4

it was devised by Kelvin and modified by D Arsonaval

Answer 5

someone whose name goes by galvano sth.