<h2 /><h2>
</h2>
The term “public domain” refers to creative materials that are not protected by intellectual property laws such as copyright, trademark, or patent laws. ... Anyone can use a public domain work without obtaining permission, but no one can ever own it.
Galvanometer is a device used to detect an electric current.
<u>Explanation:</u>
A galvanometer is an electro mechanical instrument utilized for distinguishing and demonstrating an electric flow. A galvanometer fills in as an actuator, by creating a revolving redirection, in light of electric flow moving through a loop in a consistent attractive field.
Galvanometer is a gadget which is utilized to quantify electric flows. Note that the shunt obstruction must be low with the goal that greatest current goes through the shunt. Thus galvanometer can be utilized to gauge high flows.