Yes, electronic devices can charge their batteries through various methods without being plugged into a source of electricity. What all the different methods have in common is that they absorb energy that is in some other form (heat, light, vibrations, radio waves, etc.) from the external environment and then convert the energy into electrochemical energy that is stored in the device's batteries. While such methods are scientifically sound and have already been successfully demonstrated, the energy captured from the outside environment is often not enough to be practically useful. Intense research is currently underway to make energy capture more efficient, and breakthroughs are beginning to be achieved in this area. Many phones are already available that offer wireless charging. Let us look at the main types of energy a device can use to charge itself without being plugged in.

Hello candidate,

There is a limitation on the number of answering modes and answering methods available on this platform, and the only way in which I can help you is textual information and no schematic diagram can be possible for your explanation.

I am sorry for that, and if you have any other queries just feel free to ask here!!

Hi Aspirant!

As per the admission guidelines of Institute of Spece Science and Technology students are not allowed to use laptops during the first year and thus are advised not to bring their laptops. And students are not allowed to use their mobile phones in the classes or in the premises of the institute. Even they are not allowed to keep their cell phones in the bags during the classes.

Hope I answered your query, thankyou!

Dear aspirant,

There are not many colleges or universities which has specialisation courses in their BTech programme. And prermier institutes like IITs nits do not have these specialization . But colleges like vit vellore, srm University, colleges in west bengal offer specialisation courses . So you can join these. You can do internet of things course in computer science and engineering.

hi,

see the area you have mentioned in the question like automobile, aviation both of the work has needs for electronics engineer or instrumentation engineer. however there is no surety that the recruitment comes every year in those field. in india there is very less growth in automobiles company or in aviation company. because there is less of manufacturing sector. however there is many company available who makes Integrated chip design, pcb design, software development in where you would get decent paying roles. however before joining any stream you have to think whether the subjects interest you or not, rather than thinking about job roles. however also select college by researching the placement records, students review.

hope you may understand.

Hello student,

actually officially in Indian Institute of space technology or IIST doesn't allow any students to bring mobile phone ,laptop or any other electronic gadgets. Those are strictly prohibited. Even you will not get any permission to have the mobile phone in laptop in IIST hostels also. Hope it helps.

Hello aspirant, some of the best books to learn Electronic devices are-

• Getting Started in Electronics by Forrest.M.Mims

• Make Electronics – Learning by Discovery by Charles Platt

• Electronic devices and circuits By salivahanan.

• All New Electronics – Self Teaching Guide by Harry Kybett & Earl Boysen

Thank you.