d = diameter of spring. |
R = mean radius of coils. |
n = number of coils, and |
G = modulus of rigidity. |
A) \[\frac{G{{d}^{4}}}{64{{R}^{3}}n}\]
B) \[\frac{G{{d}^{3}}}{64{{R}^{3}}n}\]
C) \[\frac{G{{d}^{4}}}{32{{R}^{3}}n}\]
D) \[\frac{G{{d}^{4}}}{64{{R}^{3}}n}\]
Correct Answer: A
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