a given copper wire is stretched to reduce its diameter to half its previous value what would be its new resistance
Answers
Answered by
4
Answer:
The resistance would be twice than it was before.
Explanation:
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sujayraj24:
Ok
R is inversely proportional to the cross section of the wire
which means if d is havled
radius is too halved
therefore area will be reduced by 1/4th
So Resistance is increased by 4 times
yess
I actually forgot about the cross section
diameter of wire is half then wire length is 16 then diameter will be 8
new resistance becomes 4time then actual wire then 16*4=64
Answered by
7
Explanation:
Thus new resistance becomes 4 times its original resistance when diametre of given wire is halfed. ... A copper wire with a resistivity of r is stretched to reduce its diameter to half of its previous value.
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no bro the answer is 16
okay
I thought wire length is 16
sry
make my answer as brain list answer please
please
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