when an electric current is passed through any wire a magnetic field produce around it than why an electric current connecting cable doesn't attract near by iron object when electric current it switched on through ( become they have thick unilated covering on wire and it differ as a magnetic field
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when an electric current is passed through any wire a magnetic field produce around it than why an electric current connecting cable doesn't attract near by iron object when electric current it switched on through ( become they have thick unilated covering on wire and it differ as a magnetic field
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