Magnetic field due to a current loop, solenoid

When a material carrying an electric current is placed in a magnetic field that is perpendicular to the current, the Hall Effect occurs, resulting in the development of a transverse electric field in the material. Edwin Herbert Hall discovered the Hall Effect in 1879 and published his findings in 1880.  Hall Effect “The development of […]

Geomagnetism is a realm of geophysics. It researches how geomagnetism originated and the nature of the magnetic field on the Earth. The phrase ‘Geo’ translates to Earth, hence geomagnetism is the magnetism of the magnetic field that is associated with planet Earth. This field uses integral approaches to explain the magnetism of Earth and other

Scientist Andre Marie Ampere discovered a law which set up a relationship between Net magnetic field generated by the current passing through a closed loop. The current must pass through a closed loop for the application of this law.  When a current passes through a straight wire, then we know that a magnetic field is

A moving coil galvanometer is a device used in electromagnetism to calculate the values of small currents. The galvanometer can measure the strength, presence, and direction of current in a conductor. The galvanometer contains a needle that deflects upon identifying the lines of magnetic field. A galvanometer works on a specific principle, and various factors

Electromagnets Introduction Electric current creates the magnetic field in an electromagnet, a special kind of magnet. Wire looped around a coil is the most common building block of an electromagnet. Electromagnetism occurs when current flows through the wire, creating a magnetic field in the coil’s centre. When the current is switched off, the magnetic field

Earth’s field, conjointly referred to as the geomagnetic field, is the magnetic field that extends from the earth’s interior out into the area, wherever it interacts with the solar radiation, a stream of charged particles emanating from the sun. The field is generated by current due to the motion of Convocation current of a mix

The Earth’s Magnetic Field is why free-floating magnetic needles come to rest roughly along the geographical north-south axis. It demonstrates that the earth operates as a massive magnetic dipole, with its magnetic poles located close to its geographical poles. Because the magnetic needle’s north pole approximates geographic north (NG), the magnetic pole near NG is

In our day-to-day life, we encounter different magnets like bar magnets, horseshoe magnets, sphere magnets, disc magnets, cylindrical magnets, and many more. We all know that these magnets have two poles: the north and south poles. These magnets are called permanent magnets. Their magnetic force stays for a long time until the materials from which

Almost everyone is aware of the attraction and repulsion of magnets. But what many may not know is how magnets are formed and why they attract or repel each other.  Magnets work on the magnetic field they produce; the biggest example is the Earth, which keeps solar winds from damaging its protective layers. An electromagnet

Substances that are freely magnetised by magnetic fields are called diamagnetic substances. In this case, magnetization occurs in the opposite direction to the magnetic field. Diamagnetic substances are repellent to the external magnetic field. Their rotation around the nucleus determines the orbital angular momentum of electrons in an atom. In the case of a diamagnetic