Questions
A force F is needed to break a copper wire having radius R. The force needed to break a copper wire of radius 2R will be
a
F/2
b
2F
c
4F
d
F/4
detailed solution
Correct option is C
Breaking Force α Area of cross section of wire (πr2)If radius of wire is double then breaking force will become four times.Talk to our academic expert!
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