What was the Edison Effect?

Answer 1

The Edison Effect is a fact about heated metal wire- discovered by a British scientist, Frederick Guthrie, in 1873, but named after Edison when the latter independently discovered it in 1880- that it will emit a current of negative charge into a vacuum, and the size of this current depends on the voltage across the metal wire. It states that a voltage across a wire results in a vacuum emission of current is the basis for the vacuum tube, an invention that Edison could have easily developed but decided not to pursue.

Answer 2

The Edison effect refers to the phenomenon discovered by Thomas Edison in 1883, where a current flows between a heated filament and a plate in a vacuum tube. This laid the foundation for the development of vacuum tubes and later electronic devices.