please solve notebook
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Answer:
40ohm
Explanation:
We know that Resietance is directly proportional to lenght of wire.
The length is twice. it means that the resistance will also get twice.
Therefore, 20x2=40ohm
divyanshrajpoot95:
wrong hai
This person has assumed that area remains constant which is a wrong assumption
when we remove area from the equation using density we find that resistance is proportional to square of length. So we get 80 ohms as the final resistance. Cheers! :)
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