Faraday’s law

Поделиться
HTML-код
  • Опубликовано: 22 сен 2024
  • To access the translated content:
    1. The translated content of this course is available in regional languages. For details please visit nptel.ac.in/tr...
    The video course content can be accessed in the form of regional language text transcripts, books which can be accessed under downloads of each course, subtitles in the video and Video Text Track below the video.
    Your feedback is highly appreciated. Kindly fill this form forms.gle/XFZh...
    2. Regional language subtitles available for this course
    To watch the subtitles in regional languages:
    1. Click on the lecture under Course Details.
    2. Play the video.
    3. Now click on the Settings icon and a list of features will display
    4. From that select the option Subtitles/CC.
    5. Now select the Language from the available languages to read the subtitle in the regional language.

Комментарии • 1

  • @sridharchitta7321
    @sridharchitta7321 2 года назад

    The opposing (or induced) emf produced by an inductor is a characteristic of the non-Coulomb electric field (NC) that is proportional to the rate of change in current causing a changing magnetic field. And that is Faraday's Law.
    The current is a result of the combination of an opposing Coulomb electric field and the applied field which is changing the current. The opposing Coulomb (C) field is a result of polarization of the inductor by the non-Coulomb (NC) electric field. So, the current is a consequence of the resultant field of the applied field and the Coulomb electric field in the inductance coil and is determined using the governing relation in conductors J = σE_net. If the resistance of the solenoid is very small, the magnitude of the two electric fields is nearly equal (E_C ~ E_NC).
    It is not possible in this post to discuss in more detail the formation of the Coulomb field when the current in an inductor is changed.
    Before learning Faraday's Law and its application to the operation of inductors, it will be instructive to understand Current, the conduction process and Voltage at the fundamental level as in the following two videos:
    i. ruclips.net/video/TTtt28b1dYo/видео.html and
    ii. ruclips.net/video/8BQM_xw2Rfo/видео.html
    The last frame References in video #1 lists textbooks 3 and 4 which discusses topics on inductance and inductors in more detail using a unified approach and provides an intuitive understanding of inductive reactance.
    It also describes with sequential diagrams how an inductor develops the induced emf. Textbook 4 shows how the current lags the voltage across the inductor by 90 degrees for sinusoidal input voltages using sequential diagrams.