Calculate the resistance of a 1km long aluminium wire of diameter 5mm. Find resistance of the wire made of nichrome of same length and diameter also. (Resistivity of aluminium is 28×10-8 Ωm; Resistivity of nichrome is 100×10-6 Ωm).
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Answer:
the resistivity of aluminium is best and we can find the nichrome such as good or bad and the nichrome is not good
Explanation:
the nichrome is not good because if corona patient rouchit and when we touch it they will spread the virus
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