I was afraid to type the title of the question though there are lot of answers to similar questions. I spent half a day going reading these questions and trying to understand the answers posted and other sources on the internet and remaining half of the day trying to understand the difference between EMF and potential drop which branched off from the earlier questions as I felt it is crucial to understand the difference. All I was able to understand is "EMF is produced by anything other than electrostatic field while potential drop is produced due to electrostatic field". These are the list of questions which I found a bit useful:
- Voltage drop across an inductor
- How can we derive the polarity of the induced voltage in an inductor?
- How to determine the polarities of inductor?
But, I feel each of these questions have different explanations and I feel hard to conclude anything from these. Finally, I decided to understand only the ideal inductor (as most problems deals with only ideal inductors) and I just want to know how to find voltage produced across an inductor in positive current direction and how to apply it in simple circuit analysis problems. I would be thankful If I could get an answer to the question, "Why voltage drop is negative of induced EMF for an ideal inductor".