NCERT notes for Class 10 Science chapter 12 are about magnets and their many qualities. Magnetic field, magnetic field created by a straight wire, magnetic field produced by a circular loop, and magnetic field produced by a solenoid are some of the subtopics discussed in this chapter. Electromagnets, kicking wire experiments, Fleming's right-hand rule, Lenz's law, AC generators, Earthing, and other devices can vary the strength of a magnetic field.