Magnetic Effects of Current

The realm of geomagnetism is a new field that has emerged to understand the geological processes along with the Earth’s inner layers. William Gilbert is known as the pioneer of the field of geomorphology. The Earth acts like an enormous magnet that embodies a magnetic north and magnetic south poles. These magnetic poles are situated […]

The measurement of electric current was not so precise and accurate during earlier days. Electric current is measured by the intensity of the field of a magnet. After the invention of galvanometers, the measurement of electric current became easy. Galvanometers are instruments made to measure electric current. Working principle of a galvanometer The working principle

When the induced currents of doubled magnetic flux change, the conductor placed in the flux gets Eddy current. The induced currents look similar to that of whirlpools or eddies, and therefore got their name.  It can be technically defined as follows: Eddy currents are loops of current in the conductor occurring by applying to change

The motion of electric charge causes attractive and repulsive forces among objects, which is known as magnetism. The powerful magnetic effects are seen at the ends of all magnets. These are where the magnet’s poles are. When two magnets are put near each other, they exert a force on each other. The attraction and repulsion

Magnetism and electricity are two separate terms but interconnected phenomena which form the basis of electromagnetism. Magnetism is the force exerted by the magnets caused by the motion of electric charges. Magnetising a wire’s coil can be one of the uses of magnets. All the magnets have two poles: north and south. The earth is

Ferromagnetism is a phenomenon in which certain items that can be charged with electricity attract others with energy. Two substances found in nature, lodestone (or magnetite, iron oxide, Fe3O4) and iron, have the potential to receive such attractive energy and are commonly referred to as natural ferromagnets. It was 2000 years in the past that

Magnets can be classified into two categories based on the nature of their composition, source of magnetism and magnetic properties. These include permanent magnets and electromagnets or temporary magnets. Permanent magnets can retain their magnetising properties, whereas temporary magnets or electromagnets cannot retain their magnetic properties.  Permanent Magnet Definition A permanent magnet is a magnetised

Solenoids are the cylindrical shape obtained by the number of turns of the conducting wires having several circular loops. When this coil is connected to the current, a magnetic field is generated inside the coil due to the flow of the current. When a soft material is used inside the coil, it becomes a magnet

Paramagnetic substances, such as liquids, are very weakly magnetised in the direction of an externally applied magnetic field. They lose their magnetic properties when the field is removed. They tend to orient themselves where they feel the magnetic field more strongly. Paramagnetic liquids have a permanent magnetic moment or dipole because of the presence of

Liquids that are freely magnetised by magnetic fields are called diamagnetic liquids. In this case, magnetisation occurs in the opposite direction to the magnetic field. Diamagnetism is displayed in these materials. Diamagnetic liquids are repellent to the external magnetic field. The orbital angular momentum of electrons in an atom is determined by their rotation around