What does the pattern formed by iron filings around a magnet demonstrate?
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A.
The presence of an electric field around the magnet
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B.
The effect of friction on iron filings
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C.
The presence of gravitational force
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D.
The presence of a magnetic field around the magnet
Correct Answer:
D. The presence of a magnetic field around the magnet
Explanation:
When iron filings are scattered around a magnet, they align themselves along the invisible lines of force that emanate from the north pole and enter the south pole. This specific arrangement visually maps out the magnetic field, showing its strength and direction in the space surrounding the magnet. While other forces like gravity or electricity exist, the unique curved patterns formed by the filings specifically represent magnetic flux rather than friction or electric fields.
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