To show action of electric current on a magnet. A 75 mm cobalt steel needle supported on a pivot is mounted on base and is surrounded by a copper strip rectangle with two terminals.
To show action of electric current on a magnet. A 75 mm cobalt steel needle supported on a pivot is mounted on base and is surrounded by a copper strip rectangle with two terminals.
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To show action of electric current on a magnet. A 75 mm cobalt steel needle supported on a pivot is mounted on base and is surrounded by a copper strip rectangle with two terminals.