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Iron
Copper
Aluminium
Silver
The best conductor of electricity is
The best material for the core of a transformer is
The bimetallic strip in a thermostat consists of brass and iron. When the strip is heated, it bends into an arc with brass on the convex side and iron on the concave side of the arc. This happens because
The blotting technique used to identify the isolated protein is _
The blue colour of sky is due to the phenomenon of
The blue colour of the water in the sea is due to
The blue colour of water in the sea is due to
The BOD value of water indicate the
The BOD values of water indicate the
The boiling point of water decreases at highest altitudes due to
