Faraday Siemens Gram Who invented the generator? Who invented electric current?

in p>1832, Faraday invented the generator. Faraday passes a wire in a closed circuit through an electromagnetic field, and when the wire rotates, current flows through the wire, so Faraday understands that there is a close relationship between electricity and magnetic field.

However, Faraday's generators are only experimental devices with very low power and are not actually used.

in p>1854, the first local self-excited generator was patented, which was completed by Siemens.

It was announced and recognized in p>1866. In the same year, Siemens invented a high-power generator.

in p>1867, Gram made an improved alternator. However, this is an improvement, not an invention.

current, which has been mentioned when Faraday was mentioned above.

from the beginning, it should be said that Faraday invented the generator. If it is actually used by people, it can be said that it was invented by Siemens.

the key is, inside or outside the laboratory.