What happens when a needle is is rubbed with only in one direction?
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some work is done against friction
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☛ The Earth's spinning iron core gives Earth its magnetic field. ...
☛ If a magnet is used with a distinctive north and a south pole, we will be able to tell whichdirection the needle is pointing.
☛ If the south pole of the magnet is rubbed on the needle this side will then become the north pole.
☛ If a magnet is used with a distinctive north and a south pole, we will be able to tell whichdirection the needle is pointing.
☛ If the south pole of the magnet is rubbed on the needle this side will then become the north pole.
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