Read the following information:
( 1 ) The resistivity of copper is lower than that of aluminium which in turn is lower than that of constantan.
( 2) Six wires labelled as A, B, C, D, E and F have been designed as per the following parameters:

Answer the following questions using the above data:
Which of the wires has minimum resistance and why?

Explanation

The wire F has the minimum resistance, since it has least length, maximum thickness and least resistivity. (Using, `R = rho l/A`)