Answer the following : A) What will be the resistance of a metal wire – InterviewSolution

1.	Answer the following : A) What will be the resistance of a metal wire of length 2 metres and area of cross section 1.55×10-6m2, If the resistivity of the metal be 2.8×10-8 ohm-metre? B) How does the presence of impurities in a metal affect it's resistance? C) What happens to the resistance as the conductor is made thinner?
Answer» Answer the following : A) What will be the resistance of a metal wire of length 2 metres and area of cross section 1.55×10^-6m², If the resistivity of the metal be 2.8×10^-8ohm-metre? B) How does the presence of impurities in a metal affect it's resistance? C) What happens to the resistance as the conductor is made thinner?

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