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...
by abhishek | Aug 27, 2020 | Non-Renewable Sources of Energy
Combustion of Fuels We know that fuels produce energy only when they are burnt in the presence of oxygen. This process of burning of fuels in the presence of oxygen to produce energy is called combustion. The combustion of fuels can take place if following two...
by abhishek | Aug 27, 2020 | Non-Renewable Sources of Energy
When fuels are burnt, heat is produced. The amount of heat produced by different types of fuels on burning is expressed in terms of calorific value. Calorific value of a fuel may be defined as the amount of heat produced on complete burning of 1 gm of fuel. S.I. unit...
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