Slect true statment
In bullock cart Wooden wheel made bigger than iron wheel
Biametallic strip are made up of two same metal
Electric wire kept sagging
Thermal expansion occur in solid only.
Answers
Answer:
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Answer:
In a bullock cart, wooden wheel is made bigger than the iron rim
Explanation:
In a bullock cart, wooden wheel is made bigger than the iron rim. The rim is then heated. On heating, the iron expands and gets perfectly fixed onto the wooden wheel. Then, water is poured over the rim. When the water gets poured, the metal goes called and contracted and fits tightly around the wooden wheel.