Physics
A bimetal made 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

Remain straight
Bend towards left
Bend towards right
None of these

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Physics
A Fuse wire is characterised by

High resistance and low melting point
High resistance and high melting point
Low resistance and high melting point
Low resistance and low melting point

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