I am going through very hard time studying electronics, I studied little electronics at high school (what is diode, transistor, etc). Now in clg now I need electronics to study, I don't understand anything at all, I find electronics very hard and also boring. So please suggest me a absolute beginner book in electronics, one that is suitable for physics majors, I searched "electrical engineering stack exchange", but those books don't match my syllabus also looks like engineering book. My syllabus include OPAM, negative feedback, positive feedback all these stuff.
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Art of Electronics, now in its 3rd edition by Horowitz and Hill has always been a classic. Comprehensive and easy to read with an emphasis on practice rather than deep theory.
I am a professional electronics engineer and I have used it (I transitioned from physics) for decades
The answer suggesting "Art of Electronics" is spot on -- no argument. However, it is also spot on expensive. An alternative is Practical Electronics For Inventors which is now in its 4th edition and an excellent low priced book that allows you to move through the material more quickly.
The scope of coverage for "Practical Electronics For Inventors" is about the same as "Art of Electronics" but it is not as deep in a number of areas but definitely more practical and hands-on giving the reader ready-made "experience" to go along with the knowledge.
I own both and I would recommend both but if money is tight, go for "Practical Electronics for Inventors" or just buy it first to see if it works for you.