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Why is only Iron is used in electromagnets. Can nickel be used in place of iron in electromagnets .?
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Why is only Iron is used in electromagnets. Can nickel be used in plac...
The relative permeability of iron can be as high as 200,000 if it is pure enough. ... This is why iron is almost always used for electromagnet cores. When the current in the wire generates its magnetic field, it also induces a field in the iron, which makes the magnetic field of the wire thousands of times stronger.
For an electromagnet, you need a core material with low remnance. That is, when you remove the magnetomotive force (current in the coil) the core will (mostly) demagnetise and let the load or armature go. Iron or silicon steel has this property.
Other steel alloys do not necessarily have this property. They have a high remnance which means they remain highly magnetised even wjen the mmf is removed. This is an undesirable property for an electromagnet.
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Why is only Iron is used in electromagnets. Can nickel be used in place of iron in electromagnets .?
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Why is only Iron is used in electromagnets. Can nickel be used in place of iron in electromagnets .? for Class 7 2025 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about Why is only Iron is used in electromagnets. Can nickel be used in place of iron in electromagnets .? covers all topics & solutions for Class 7 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Why is only Iron is used in electromagnets. Can nickel be used in place of iron in electromagnets .?.
Why is only Iron is used in electromagnets. Can nickel be used in place of iron in electromagnets .? for Class 7 2025 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about Why is only Iron is used in electromagnets. Can nickel be used in place of iron in electromagnets .? covers all topics & solutions for Class 7 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Why is only Iron is used in electromagnets. Can nickel be used in place of iron in electromagnets .?.
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