Question

Applications of electromagnetism

Answer 1

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In many practical application of electromagnet, such as motors, generator, transformer, lifting magnets, and loudspeakers, the iron core in the from of loop or magnetic circuit, possibly broken by a few narrow air gaps. This is because the magnetic field lines are in the from of closed loops.

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Answer 2

Answer:

• Actuators such as valves.
• Magnetic recording and data storage equipment: tape recorders, VCRs, hard disks.