Question

3) Which cells are used in the gadgets carried to
different places?​

Answer 1

Batteries of 1.5 volts are commonly used .

But if you want longer duration you can buy duracell

Answer 2

ANSWER:

Dry cells  are the cells that are used in the gadgets carried to different places.

EXPLANATION:

   The cells which are used in Mobile, Bank power and Camera etc. These gadgets work with us and it converts chemical energy into electrical energy. It makes our life easy. It is very useful invention of science. These cells are formed with Lithium ion, nickel metal hydride, Lead acid and nickel cadmium are also used as portable cell.  

  There is another type of cells which is known as button cells. They are alkaline type of cells. It is used is camera and watches and dry cell like AAA.