1.

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 are                                 [AFMC 2000]

A.            1 : 3 : 5
B.                                      5 : 3 : 1
C.            1 : 15 : 125                             
D.            125 : 15 : 1
Answer» E.


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