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4Me4 Magnetic Electromagnet– Electromagnetic model

$50.00 $38.00

The concept of electromagnet
When electric current passes through the metal wire, it magnetizes the wire temporarily and produces a magnetic field. An electromagnet is formed. It stops magnetism when there is no electricity.

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Description

電磁鐵是以通電流來產生磁力的裝置,是非永久磁鐵,與永久磁鐵同為磁鐵的一種。

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