An electric string of length \(X\) is stretched through a length by force F. The area of cross-section of the string is \(A\) and its young modulus is \(E\). Which of the following expression is correct?
A. \(F =\frac{E A c}{x}\) B. \(F =\frac{E A e}{X^{2}}\) C. \(F =\frac{E A \varepsilon^{2}}{x}\) D. \(F =\frac{E A e^{2}}{X^{2}}\)
Correct Answer:
Explanation
An electric string of length \(X\) is stretched through a length by force, The area of cross-section of the string is \(A\) and its young modulus is
