A bimetal made of copper and iron strips welded together is straight at room temperature. It is held vertically with iron strip towards left and copper strip towards right. If this bimetal is heated, it will
A. remain straight
B. bend towards right
C. bend towards left
D. bend forward
Answer:C
A bimetal made of copper and iron strips welded together is straight at room temperature. It is held vertically with iron strip towards left and copper strip towards right. If this bimetal is heated, it will
A. remain straight B. bend towards right C. bend towards left D. bend forward