On which factors does the resistivity of conducting wire depend?

If the work is to be done to take 3C electric charge from one point to another is 15 J, what will be the potential difference between these two points?

(A) 3 V

(B) 15 V

(C) 5 V

(D) 45 V

The resistance of one conducting wire is 10 Ω. How much electric current will flow by connecting it with a batter of 1.5 V?

If the five equal pieces of a resistance wire having 5 resistance each is connected in parallel, then their equivalent resistance will be -----

The unit of resistivity of the material is –