Soft iron is used to make the core of transformer

A soft iron core within a magnetic field will cause the magnetic field lines to be concentrated in the area around the core. This is because the soft iron core is a good conductor of magnetism, and so the magnetic field lines are able to flow through it easily. This concentration of the magnetic field lines will cause the soft iron core to become magnetized, and the strength of the magnetism will be proportional to the strength of the magnetic field. In this step-by-step explanation, we’ll go over how an electromagnet works: When the soft iron rod known as the core is inserted into a solenoid, the magnetic field strength increases because iron ore magnets get magnetized through magnetic induction, and the solenoid and the core are both The soft iron core aids in the concentration of magnetic forces through the coil, resulting in a magnetic field nearly uniform at the core’s end. As a result, the magnetic field becomes stronger when a soft iron core is inserted into a coil. The soft iron core in electromagnets does not retain magnetism indefinitely, so it loses its magnetic properties as soon as the magnetic field is removed. As a result, its performance as an electromagnet improves. Does Soft Iron Core Increases Magnetic Field? Picture source: quoracdn.net In a moving coil galvanometer, a soft iron core is used to increase the strength of the magnetic field. It makes more sense that soft iron provides more magnetic pass lines. A magnetic field surrounding the wire is gener...

Assertion: Soft iron is used as transformer core. Reason: Soft iron has narrow hysteresis loop. A. If both assertion and reason are t rue and the reason is the correct explanation of the assertion. B. If both assertion and reason are true but reason is not the correct explanation of the assertion C. If assertion is true but reason is false. D. If the assertion and reason both are false

A transformer construction provides a magnetic circuit, known more commonly as the “transformer core”, which is designed to provide a path for the magnetic field to flow around. This magnetic path is necessary for the induction of voltage between the two input and output windings. However, this type of transformer construction where the two windings are wound on separate limbs is not very efficient since the primary and secondary windings are well separated from each other. This results in a low magnetic coupling between the two windings as well as large amounts of magnetic flux leakage from the transformer itself. But as well as this “O” shapes construction, there are different types of “transformer construction” and designs available which are used to overcome these inefficiencies producing a smaller more compact transformer. The efficiency of a simple transformer construction can be improved by bringing the two windings within close contact with each other thereby improving the magnetic coupling. Increasing and concentrating the magnetic circuit around the coils may improve the magnetic coupling between the two windings, but it also has the effect of increasing the magnetic losses of the transformer core. As well as providing a low reluctance path for the magnetic field, the core is designed to prevent circulating electric currents within the iron core itself. Circulating currents, called “eddy currents”, cause heating and energy losses within the core decreasing the tr...