Question

A copper wire has a diameter of 0.5 mm and resistivity
1.6 \times { 10}^{ - 8}1.6×10
−8

(i) What will be the length of this wire to make the resistance of 12ohm
(ii) How much will be the resistance of another copper wire of same length but half the diameter ?

Please answer this physics numerical of class 10 from Xam idea !!!
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Answer 1

Answer:

solve that you will get the answer

Answer 2

Answer:

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