by Rajan Gupta | Aug 27, 2020 | Universe
We have already studied in evolution of earth that the earth is made up of three layers. These are: Crust Mantle and Core Crust Crust is the outermost solid and rocky layer of earth. The chief component of crust is silicon, which is present in the form of...
by abhishek | Aug 27, 2020 | Magnetic Effects of Current
The magnetic effect of electric current was discovered by H.C. Oersted in 1820. He observed that flow of electric current through a conductor produce a magnetic field around it. The magnetic effect of current can be demonstrated by doing following experiment. Oersted...
by abhishek | Aug 27, 2020 | Magnetic Effects of Current
On the basis of magnetic properties all the materials have been divided into three types: 1. Diamagnetic materials 2. Paramagnetic materials, and 3. Ferromagnetic materials Diamagnetic MaterialsThe materials which are weakly magnetized in the direction...
by abhishek | Aug 27, 2020 | Magnetic Effects of Current
gnet is oxide of iron which has the property of attracting small pieces of iron, steel, cobalt and nickel towards itself. Magnet was discovered about 2500 years ago by Greeks in the form of a black ore of iron called loadstone. Now days, loadstone is called magnetite...
by abhishek | Aug 27, 2020 | Magnetic Effects of Current
Magnetic field may be defined as the space around a magnet in which the affect of magnet can be experienced. The magnetic field of a magnet is represented by equidistant parallel lines called magnetic lines of force. The magnetic line of force may be defined as the...
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