Electricity

Yes, mastering the NCERT concepts is more than sufficient to score high in the board exams. Most of the questions in the Class 12 board exam are based on NCERT textbook content. Hence, the students can build a strong understanding of the important topics and numerical problem solving by regularly using the NCERT solutions for guidance and by thoroughly practicing from here. The chapter 3 solutions given here help reinforce the correct approach and ensure that no question is left unexplained. However, the students preparing for the board exams can also solve the previous years' question papers and exemplar problems. However, for scoring high in board exams and concept-building, NCERT solutions are the first and most crucial study resource.

It is a great source of study for students preparing for various exams as it gives step-by-step answers to all the NCERT textbook questions. The solutions help students to understand the right approach and logic required to solve the problems of this chapter. This chapter involves several important concepts including EMF, resistance, Ohm's law, and Kirchhoff's laws, which can be difficult to understand without proper guidance. The NCERT solutions break down the theoretical and complex numerical questions in a simple manner and are strictly based on the CBSE pattern which helps students in focused exam preparation. Also, the NCERT concepts form the strong base for board exams and competitive exams like JEE, hence mastering them is absolutely important for students preparing for Class 12 board and entrance exams.

Conductors refer to materials that throughout their structure, allow the free movement of electric charges normally electrons. It happens because of the free electrons present in their outer shells. The examples of conductors include silver, aluminum and copper. On the other hand, there is no free flow of electric charges in the insulators because the electrons are tightly bound to atoms. Examples of the insulators are wood, rubber, and plastic. In electric circuits, the conductors are used as the wiring for the efficient transmission of electricity, and the insulators are used to provide safety by preventing the unwanted flow of current on the outer side.