What is the purpose of the soft iron core used in making an electromagnet? How is it different from the permanent magnet?

Question

Answer

Soft iron core is used to make electromagnets as it gains and losses magnetism quickly depending on existence of magnetic fields.... So, they get easily magnetised/demagnetised when current is flowing or not flowing along the solenoid...When the current passes through it, it gets instantly magnetized to generate a strong and dense magnetic field. Also, when the current is stopped as circuit breaks, it gets instantly demagnetized..Soft iron is said to form a temporary magnet.!!

Answer

It is used to make electromagnet as it has significant or high magnetic properties ..
it get magnetized when current I passed and demagnitized as current stops...

It is temporary magnet only work ....or show magnetic properties ...when current is supplied whereas permanent magnets never retain their magnetic behaviour..

Answer

Ye Important Question Hai Board Point Of View Se Basically 12th Pe Puchte Hai Ye..

So The Purpose Of The Soft Iron Used In Making An Electromagnet Is That Ki Soft Iron Core Mei Electric Flux Ka Lost Ni Hota .... Jisse Better Field Bntii Haii

Soft Iron Core Are Generally Used In Generator

Answer

Becouse it can be demagnetised easily so for purpose of temporary magnet we use  core of soft iron in solenoid for making electromagnet.

Answer

Soft Iron Core in Electromagnet

The purpose of using a soft iron core in making an electromagnet is to enhance its magnetic properties and increase its magnetic strength. The soft iron core acts as a path for the magnetic field lines to flow through, thereby concentrating the magnetic field and making it stronger.

Difference from Permanent Magnet

Magnetic Properties: The soft iron core is highly susceptible to magnetization and demagnetization, making it suitable for use in electromagnets. On the other hand, permanent magnets are made of materials that retain their magnetization over a long period of time.

Magnetic Strength: The soft iron core can be easily magnetized and demagnetized, allowing the electromagnet to be turned on and off as desired. In contrast, a permanent magnet maintains a constant magnetic field without the ability to be switched on or off.

Control: The magnetic field strength of an electromagnet can be controlled by changing the amount of current flowing through the coil. In contrast, the magnetic field strength of a permanent magnet cannot be easily adjusted or controlled.

Application: Electromagnets are widely used in applications such as electric motors, generators, telecommunication devices, and magnetic resonance imaging (MRI) machines. Permanent magnets, on the other hand, are commonly used in applications like refrigerator magnets, loudspeakers, and magnetic locks.

Induced Magnetism: The soft iron core in an electromagnet becomes magnetized when a current flows through the coil, and it loses its magnetism when the current is turned off. In contrast, permanent magnets have their own magnetic field without the need for an external current.

Conclusion

In summary, the soft iron core used in making an electromagnet serves the purpose of increasing the magnetic strength by providing a path for the magnetic field lines. It differs from a permanent magnet in terms of its magnetic properties, control, application, and the ability to be magnetized and demagnetized. Electromagnets find widespread use in various industries and technologies due to their controllable and adjustable magnetic properties.

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