Magnetic Effects of Current

Bar magnets are just a type of magnets that are rectangular. Bar magnets bear the same properties as a magnet. We also hypothesise that our earth contains a massive bar magnet inside its core. The north and south poles of a magnet are determined to correspond to the poles of the earth’s magnet. A solenoid […]

An eddy current is a type of current that is produced due to changes in the magnetic field. In other words, when a magnetic flux is flowing inside a coil, eddy currents are subsequently formed. These currents are created by electromagnetic induction. They are always present in closed loops. Eddy currents produce a magnetic field

The concept of displacement current may be traced back to a well-known scientist named James Clerk Maxwell. Maxwell is well recognised for what is known as Maxwell’s equations. The four equations, when combined, create an elegant method of explaining the basics of electricity and magnetism. We shall be particularly interested in one of these equations,

Eddy currents are produced due to changes in the magnetic field. They are created when a conductor moves through a magnetic field or when the magnetic field around a stationary conductor varies. In other words, anything that causes the conductor to experience a change in the direction or intensity of a magnetic field can produce

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