Which has more resistivity, a thick or thin wire of the same material?

Will the current flow more easily through a thick wire or a thin wire of the same material when connected to the same source ? why?

Two heating coils, one of fine wire and the other of thick wire of the same material and of the same length are connected in series and in parallel. Which of the following statement is correct ?

A wire of length L and 3 identical cells of negligible internal resistance are connected in series. Due to the current, the temperature of the wire is raised by DeltaT in a time t. A number N of similar cells is now connected in series with a wire of the same material and cross-section but of length 2L. The temperature of the wire is raised by the same amount DeltaT in the same time t. the value of N is

There are two spheres of same material and same radius at same temperature but one being solid while the other hollow. Which sphere will expand more if they are heated to the same temperature .

Which of the following has more inertia : rubber ball and a stone of the same size ?

What is specific resistance and resistivity of a wire? Is it more for thick or thin wire?

What is specific resistance and resistivity of a wire? Is it more for thick or thin wire?

Compare the resistance of two wires of same material. Their lengths are in the ratio 2:3 and their diameters are in the ratio 1:2