Solve the following problems given below:
Problem I: A wire is drawn through a die, stretching it to 5.1 times its original length. By what factor does its resistance increase?
Problem II: To what temperature must you raise a copper wire, originally at 20.0°C, to double its resistance, neglecting any changes in dimensions? (Does this happen in household wiring under ordinary circumstances?)
Problem III: Find the ratio of the diameter of aluminum to copper wire, if they have the same resistance per unit length (as they might in household wiring).
Any expert will able to provide correct answer for the above problems.