Question

What Are the Functions Of :

1- Ammeter
2-Galvanometer
3-Rheostat
4-Plug Key .

Answer 1

hey mate here is your answer
may be help you ☺☺

Answer 2

Ammeter-
It is the device used for measuring current.

galvanometer-
A galvanometer is an electromechanical instrument used for detecting and indicating an electric current.

rheosat-
Rheostat, adjustable resistor used in applications that require the adjustment of current or the varying of resistance in an electric circuit

plug key-
a plug key is an electrical component which act as a switch...

hope this will help u☺️