Masses of three wires of copper are in the ratio of 1:3:5 and their lengths are in the ratio of 5:3:1. The ratio of their electrical resistances is

Options

(a) (1:3:5)
(b) (5:3:1)
(c) (1:15:125)
(d) (125:15:1)

Correct Answer:

(125:15:1)

Explanation:

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