Which of the following is the correct torsion equation?
A
$$\frac{{\text{M}}}{I} = \frac{\sigma }{{\text{y}}} = \frac{{\text{E}}}{{\text{R}}}$$
B
$$\frac{{\text{T}}}{{\text{J}}} = \frac{\tau }{{\text{R}}} = \frac{{{\text{C}}\theta }}{l}$$
C
$$\frac{{\text{M}}}{{\text{R}}} = \frac{{\text{T}}}{{\text{J}}} = \frac{{{\text{C}}\theta }}{l}$$
D
$$\frac{{\text{T}}}{l} = \frac{\tau }{{\text{J}}} = \frac{{\text{R}}}{{{\text{C}}\theta }}$$
Correct Answer: $$\frac{{\text{T}}}{{\text{J}}} = \frac{\tau }{{\text{R}}} = \frac{{{\text{C}}\theta }}{l}$$
