Question

(i) Consider a conductor of resistance ‘R’, length ‘L’, thickness‘d’ and resistivity ‘ρ’.
Now this conductor is cut into four equal parts. What will be the new resistivity of
each of these parts? Why?

Answer 1

Answer:

We know that resistivity is a material properties and does not depends on the physical dimensions.So even wire cuts in 4 equal but still resistivity will remain same. So the answer is, resistivity will be same. For given voltage parallel connection consume more power because it have low equivalent resistance.

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