Two cylindrical conductors, one of copper and other of aluminium have the same lengths and the same resistances. How many times is copper heavier than aluminium?
Resistivity of aluminium 
resistivity of copper.
Density of aluminium 
density of copper.
A
2 times
B
4 times
C
times
D
times
Text Solution
Verified by ExpertsThe correct answer is:
A
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