It explains the natural magnetic fields in and surrounding the Earth that arise from a variety of electric currents. The author clearly presents these different ... Special appendices review relevant ...

NCERT Books help students to gain an understanding ... current induced in a coil due to its rotation in a magnetic field. Sol ...

When an electric current passes through a metal wire, a magnetic field forms around that wire (see diagram at right). Likewise, a wire passing through a magnetic field creates an electric current ...