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An alternating voltage or current is one whose magnitude changes with time and direction reverse periodically. Free download we already studied about alternating current and direct current in our previous classes, but in this chapter, we will study only about alternating current and its applications like, how a resistor will work when ac voltage is applied to it. All educational material on the website has been prepared by the best teachers having more than 20 years of teaching experience in various schools. Ncert solutions for class 12 physics chapter 7 alternating current check out the solutions for the chapter 7 alternating current of class 12th ncert physics book. Ncert solutions for class 12 physics chapter 7 alternating current exercises are given below to use it online or download in pdf form free for new academic session 202021. Copies of these textbooks may be downloaded and used as textbooks or for reference.
Chapter 31 alternating current phasors and alternating currents resistance and reactance magneticfield energy the lrc series circuit power in alternating current circuits resonance in alternating current circuits transformers. The mean value of the ac is defined as equivalent steady current which when passed through a circuit would send the same amount of charge in the same time as is done by the alternating current in the same circuit in the same time. Alternating current refers to the current that changes directions many times after a fixed interval of time. This alternating current or ac has some interesting properties. Guru is a free educational site for students, we started jeemain. Ncert solutions for class 12 physics chapter 7 alternating.
Pandey physics electricity and magnetism free pdf iit books. Unlike dc the flow of electric charge changes direction. Class 12 physics notes chapter 7 alternating current. Apr 08, 2020 ncert class 12 physics books in english pdf download. Generators usually produce current that reverses direction in phase with its rotation. Alternating current grade 12 physics notes khullakitab. Download cbse class 12th revision notes for chapter 7 alternating current in pdf format for free. Ncert class 12 physics alternating current ncert book. Here you can read chapter 7 of class 12 physics ncert book.
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