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Question
Which of the following processes is to be followed to bend an iron rod into a circular loop?
Which of the following processes is to be followed to bend an iron rod into a circular loop?
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Solution
The correct option is A Heating the rod
A metal expands and becomes soft when heated. So when the iron rod is heated, it becomes soft and can be easily moulded into the circular shape.
On the other hand, cooling a metal makes it hard and the metal contracts. Dropping the rod or stretching it won’t affect its shape to form a circular loop.
A metal expands and becomes soft when heated. So when the iron rod is heated, it becomes soft and can be easily moulded into the circular shape.
On the other hand, cooling a metal makes it hard and the metal contracts. Dropping the rod or stretching it won’t affect its shape to form a circular loop.
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