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.
Oh a document, I do not believe that you have type on images, but if you were to type a text in a app called PicsArt and saved it and then put it onto the document over the picture it would work.
Answer: Unified communication
Explanation: Unified communication is the communication technique in which merges various communication routines into a individual business.It works as the phone system which helps in increment of productivity in an organizational business.
The unifying of voice,data/information,video etc is done for optimizing and improving the business that also results in faster communication rates, secure communication etc.
I Think The answer is d I hope it helps