Concept explainers
To Explain: An atom of iron is like a tiny magnet but a piece of iron might not be a magnet.
Explanation of Solution
Introduction:
A magnet is a substance which attracts other magnetic materials. A magnet has two poles-North pole and south pole. Magnetic field lines emerge from north pole and enter in south pole.
A moving charged particle also constitutes a magnetic field around it. In an atom, as the electron moves about the nucleus, it generates a small magnetic field and thus, an atom is said to be a tiny magnet. Iron is a temporary magnet because the domains that is the small magnetic field produced by individual atoms may not be oriented in the same direction. When domains get aligned, then only a material acts as a magnet.
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