A constantan wire has a cross sectional area of 4 x 10-8m2 and a resistivity of 1.1 x 10-6\(\Omega\)m. If a resistor of resistance 11\(\Omega\) is to be made from this wire, calculate the length of the wire required
a
0.4m
b
0.8m
c
2.5m
d
5.0m
Explanation
Correct Option
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