Question

what is a solenoid? what is the important the putting a soft iron rode in the magnetic field of a solenoid​

Answer 1

Answer:

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Explanation:

~Solenoid is a type of electromagnet, the purpose of which is to generate a controlled magnetic field through a coil wound into a tightly packed helix. The coil can be arranged to produce a uniform magnetic field in a volume of space when an electric current is passed through it.

~It has been found that if a soft iron rod called core is placed inside a solenoid, then the strength of the magnetic field becomes very large because the ironore is magnetized by induction. ... Thus, an electromagnet consists of a long coil of insulated copper wire wound on a soft iron core

Answer 2

Answer:

Solenoid is a cylindrical coil of wire acting as magnet when carrying electric current. Usually an electromagnet or a temporary magnet is prepared by placing a soft iron core in a solenoid . A strong field can be made by coiling the wire around a piece of soft iron. An electromagnet shows magnetic property only when electric current flows through the solenoid or coil.