ocr: How to create a powertul electromagnet Ifyou make a wire into a coil and pass a current through it, amagnetic field appears around the coil. MAGNETIC FIELD COILED WIRE DIRECTION OF CURRENTI BATTERI An electromagnetic wire coil You can make the field even stronger by wrapping the coil around an iron rod. A rod with wire coiled around it like this is called an electromagnet. While current. flows through the coils of an electromagnet, it behaves just like an ordinary magner, picking up pieces of iron or steel. When the current is turned off, however, the electromagnet loses its magnetic field, an ...
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