The signs of a chemical reaction are bubbles, heat an magnesium disappearing.
If everything else is held constant ... the substance from which
the conductor is formed, its cross-sectional area, its temperature
everywhere along its length ... then yes, its resistance will be
directly proportional to its length.
Hello!
The shape of the star-nosed mole's nose helps it to take away the excess heat.
Letter b)
Hugs!
