Explanation:
At room temperature, resistivity of tungsten is and the resistivity of aluminium is .
Temperature coefficient of aluminium () =
and,
=
T =
=
So, at aluminium has resistivity which is three times the resistivity of tungsten at room temperature.
Answer:
A log burning to ashes is a chemical change.
Explanation:
If it is a true or false questions, the answer is TRUE.
Atomic number
atomic mass
group|family
periods
and element symbols