MCQOPTIONS
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| 1. |
The deflection δ of the closed coil helical spring isWhere: W is the axial loadR is radius of the coiln is the number of turns of coilC is the modulus of rigidityd is the diameter of the wire of the coil |
| A. | \(\frac{{W{R^2}n}}{{8C{d^3}}}\) |
| B. | \(\frac{{64\;W{R^3}n}}{{C{d^4}}}\) |
| C. | \(\frac{{128\;W{R^3}n}}{{C{d^2}}}\) |
| D. | \(\frac{{64\;W{R^2}n}}{{C{d^2}}}\) |
| Answer» C. \(\frac{{128\;W{R^3}n}}{{C{d^2}}}\) | |