Home

When a closely-coiled helical spring of mean diameter (D) is subjected to an axial load (W), the deflection of the spring (δ) is given by (where d = Diameter of spring wire, n = No. of turns of the spring, and C = Modulus of rigidity for the spring material)

A. WD3n/Cd⁴

B. 2WD3n/Cd⁴

C. 4WD3n/Cd⁴

D. 8WD3n/Cd⁴

Please do not use chat terms. Example: avoid using "grt" instead of "great".