1.

The following materials of line conductor are given. i. Hard drawn copper. ii. Cadmium copper. iii. Aluminium. iv. Galvanised steel. What is the correct series in descending order of their electrical conductivities?

A. i, ii, iv, iii.
B. ii, i, iv, iii.
C. ii, i, iii, iv.
D. i, ii, iii, iv.
Answer» E.


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