Which statements are true in terms of aluminum conductors? i. they are typically compact stranded. ii. they are heavier than copper conductors. iii. they are lighter than copper conductors. iv. they provide the same ampacity as a copper conductor when both are the same size conductor.

They are lighter than copper conductors

Explanation:

Aluminium conductors:

  Generally weight of aluminium is half of weight of copper .

 Aluminium conductors are inexpensive.But on the other hand copper conductors are expensive.That is why aluminium conductors are widely used in every where .

So option III is correct.

They are lighter than copper conductors

the dependant variable is spilled water

the independent is the heat