Question
Question: A force F is needed to break a copper wire having radius R. The force needed to break a copper wire ...
A force F is needed to break a copper wire having radius R. The force needed to break a copper wire of same length and radius 2R will be –
A
F/2
B
2F
C
4F
D
F/4`
Answer
4F
Explanation
Solution
Breaking force µ cross-sectional area. Area is quadrupled