what happend to the magnetic strength of steel iron nail and soft iron wrapped on copper coil turn off
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Swedish Iron. Supplying for 20 years. ISO 9001 Approved. Uses: Electrical, Electronic Equipment Industry.
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Magnetism and electromagnetism occur because of the magnetic fields around magnets and around electric currents.
Electromagnets
A coil with an iron core is called an electromagnet.
The iron core increases the coil’s magnetic field strength.
A simple electromagnet is made by coiling wire around an iron nail.
Explanation:
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