How are we able to break the wire by repeated bending?
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42
When a metal is repeatedly bent at a perticular site, it suffers a phenomenon knows as metal fatigue. A metal suffering metal fatigue breaks down because it losses its elastic which result in microscope cracks to be developed in the metal and it becomes brittle.
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( I hope this answer is useful to you.)
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8
The bonding between get weaker and the wire will break down
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