All magnetic materials lose their magnetic properties when:

Dipped in water

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Dipped in oil

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Brought near a piece of iron

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Strongly heated

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Solution

The correct option is D Strongly heated
Every magnet has the capacity to sustain the magnetic property. When we start heating the magnet, it starts losing its magnetic property. If the magnet is strongly heated then it can not hold its magnetic property under that high temperature. Thus, it gets demagnetized losing all of its magnetic properties..

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A magnet loses its magnetic property when :

Which of the following substances do not lose their magnetic properties when external magnetic field is removed?

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